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Physics Chapters

10th Class Chapter 6 Physics Long Questions

Dear students, prepare for physics class 10th chapter 6 long questions. These important long questions are carefully added to get you best preparation for your 10th class physics ch. 6 exams.
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Question: 1
<p class="MsoNormal">What is the difference between a generator and motor?</p>
Answer: 1
1-26

Generator:

Generator produced electric current due to the movement of wires near very large magnets.

Motor:

Motors and electric meters are based on the effect of magnetism.

Question: 2
<p class="MsoNormal">Different between electricity and magnetism?</p>
Answer: 2
2-26

It is the study of magnetic effect of current is called magnetism.

Electricity:

Electricity through vacuum by putting two electrodes in a sealed vacuum tube.

Question: 3
<p class="MsoNormal">Make the table of OR operation from two terminal?</p>
Answer: 3
3-26

S1:

Open,open, closed,closed

S2:

Open,closed open,closed

S3:

Off,On,on,on,

A : O,O,,I,I

B: O,I,O,I

X=A+B: O,I,I,I r

Question: 4
<p class="MsoNormal">What is solenoid what is method to find its poles?</p><p class="MsoNormal"><br></p>
Answer: 4
4-26

A coil wire consisting of many loops is called a solenoid the current carrying solenoid has a north and a south pole and behaves like a magnet.

Question: 5
<p class="MsoNormal">Name two factors which can enchance thermionic emission?</p>
Answer: 5
5-26

Metals contain a large number of free electrons

The process of emission of electrons from hot metals surface is called thermionic emission.

Question: 6
<ol><li><p class="MsoNormal">State right hand rule?</p></li></ol>
Answer: 6
6-26

Right hand with the thumb being stretched in the direction of conventional current the curl of fingers will point in the direction of magnetic lines of force.

Question: 7
<p class="MsoNormal">Write step down transformer with the help of diagram?</p>
Answer: 7
7-26

If the secondary voltage is smaller than the primary voltage, the transformer is called step down transformer in step down transformer (NSLNP).

Question: 8
<p class="MsoNormal">What is transformer?</p>
Answer: 8
8-26

Transformer is an electrical device which is used to increase or decrease the value of the alternating voltage.

Question: 9
<p class="MsoNormal">Make the truth table and symbol of and gate?</p>
Answer: 9
9-26

A : O,O,1,1

B: O,1,O,1

X=AB: O,O,O,1

Symbol for AND operation is dot(.)

Question: 10
Define mutual induction and self induction?<div><br></div>
Answer: 10
10-26

Mutual induction:

The phenomenon of production of induced current in one coil due to change current in a neighboring coil is called mutual induction.

Self induction:

The induction of an electromotive force in circuit when the current in that the current in that circuit is varied.

Question: 11
<p class="MsoNormal">State faraday’s law of electromagnetic induction?</p>
Answer: 11
11-26

First law of faraday’s electromagnetic induction state that whenever a conductor are placed varying magnetic field emf are induced which is called induced.

Question: 12
<p class="MsoNormal">Define NOR gate give truth table for operation?</p>
Answer: 12
12-26

The NOR gate operation is simply an OR operation followed by a Not operation.

A: O,O,1,1,

B: O,1,O,1

X=A+B : 1,O,O,O

Question: 13
<p class="MsoNormal">What is step up transformer and step down transformer?</p>
Answer: 13
13-26

If the number of turns in the secondary coil is more than the number of turns in the primary coil then it is step up transformer.

Step down transformer:

If number of turns primary are more than the number of turns in the secondary than it is step down transformer.

Question: 14
<p class="MsoNormal">What are Boolean variables?</p>
Answer: 14
14-26

Georage boole invented a special algebra called is a branch of mathematics which deals with relationships of logic variables.

Question: 15
<p class="MsoNormal">What is fleming left hand rule?</p>
Answer: 15
15-26

Stretch the thumb forefinger and the middle finger of the left hand mutually perpendicular to each other .

Question: 16
<p class="MsoNormal">Define logic gate?</p>
Answer: 16
16-26

Such circuits have been designed which implement the various logic operation these circuits are called logic gates.

Question: 17
<p class="MsoNormal">What is D.C motor and function of split rings in D.C motor?</p>
Answer: 17
17-26

D.C motor is a device which convents electrical energy into mechanical energy split rings is connect the soil the battery through carbon brushes when coil rotates in between the pole pieces of magnet split rings keeps the current in the coil and hence coil rotates in the field.

Question: 18
<p class="MsoNormal">Define electric lines of force?</p>
Answer: 18
18-26

An electric lines of force is an imaginary catinuous field such that target to it any point gives the direction of the electric force at that point.

Question: 19
<p class="MsoNormal">What is A.C generator?</p>
Answer: 19
19-26

A.C generator converts mechanical energy electrical energy i.e it produces alternating .

Question: 20
<p class="MsoNormal">Define electrical field lines who introduced them?</p>
Answer: 20
20-26

We can set up electric field by applying a potential difference across two parallel metal plates placed horizontally separated with some distance.

Question: 21
<p class="MsoNormal">What is principle of working transformer?</p>
Answer: 21
21-26

A transformer is an electrical device which is used to increase or decrease the value of alternating voltage it cannot increase or decrease D.C voltage it works on the principle of matual induction.

Question: 22
<p class="MsoNormal">Why the anode potential is positive with respect to the cathode potential?</p>
Answer: 22
22-26

The anode is connected to positive with potential and hence is used to accelerate the electrons.

Question: 23
<p class="MsoNormal">What is electromagnetic induction?</p>
Answer: 23
23-26

The process of generating are induced current in a circuit by changing the number of magnetic lines of force passing through it is called electromagnetic induction.

Question: 24
<p class="MsoNormal">How many coils are used in transformer ?</p>
Answer: 24
24-26

These are coils used in transformer it the secondary voltage is smaller than the primary voltage the transformer is called step down transformer.

Question: 25
Write a note on magnetic effects of a steady current.
Answer: 25
25-26
Direction of magnetic field: the direction of magnetic field can be governed by the direction of current flowing through the conductor. A simple method of finding flowing through the conductor. A simple method of finding the direction of magnetic field in a conductor can be determined by a simple method right hand grip rule.
Question: 26
Explain the force and a current carrying conductor placed in a magnetic field.
Answer: 26
26-26
Force on Current carrying conductor placed in a magnetic field: Electric current produces a magnetic field similar to that the permanent magnet. Since a magnetic field exerts a force on a permanent magnet, then current carrying wire should also experience a force when it is placed in magnet field.
A battery produces a current in a wire placed inside the magnetic field of a permanent magnet. Current carrying wire produces its own field which interacts with the field of a magnet. As result the force will be exerted on wire towards left or right.
Feature of the force acting on current carrying wire: Michael Faraday discovered that the force of the wire is as right angle to both the direction of magnetic field and the direction of current. The force is increased if:
(i) the current in the wires is increased
(ii) strength of magnetic field is increased
(iii) the length of wire inside the magnetic field is increased
Finding the direction of force: the direction of forces acting on a current carrying wire conductor in a magnetic field can be founded by Fleming's left hand rule.1
Fleming's Left Hand Rule: "stretch the thumb, forefinger and the middle finger of the left hand mutually perpendicular to each other. If the forefinger points tin the direction of magnetic field, middle finger in the direction of current, the thumb would indicate the direction of force acting on the conductor".

10th Class Physics Chapters Long Questions