AARPAN INSTITUTE
BHANDARA
Test / Exam Name: Magnetic Effect Of Electric Standard: 10th Subjec
Current
Student Name: Section: Roll No
Questions: 2
Instructions
1. ATTEMPT ALL THE QUESTION
SECTION A. MULTIPLE CHOICE QUESTION
Q1.In the followin questions, a statement of Assertion is given by to correspondin
statement of Reason. Of the statement mark the correct answer as:
1. If both Assertion and Reason are true and Reason is the correct explanatio
Assertion.
2. If both Assertion and Reason are true, but Reason is not the correct
explanation of Assertion.
3. If Assertion is true, but Reason is false.
4. If Assertion is false, but Reason is true.
5. If Assertion and Reason both are false.
Assertion: In an AC generator slip-rings type of commutator is used.
Reason: Slip-rings are full rings with which the ends of coil are in contact.
Q2.For two statements are given-one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b
and (d) as given below:
1. Both A and R are true, and R is correct explanation of the assertion.
2. Both A and R are true, but R is not the correct explanation of the assertion
3. A is true, but R is false.
4. A is false, but R is true.
Assertion: Magnetic field lines forms closed loops in nature.
Reason: Mono-magnetic pole does not exist in nature.
Q3.For two statements are given-one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b
and (d) as given below:
1. Both A and R are true, and R is correct explanation of the assertion.
2. Both A and R are true, but R is not the correct explanation of the assertion
3. A is true, but R is false.
4. A is false, but R is true.
Assertion: The magnetic field intensity at the center of a circular coil carrying
current changes, if the current through the coil is doubled.
Reason: The magnetic field intensity is dependent on current in conductor.
, 1. A.
2. B.
3. A if the current is small, and B if the current is large.
4. B if the current is small and A if the current is large.
Q6.In the arrangement shown in Figure there are two coils wound on a non-
conducting cylindrical rod. Initially the key is not inserted. Then the key is ins
and later removed. Then,
1. The deflection in the galvanometer remains zero throughout.
2. There is a momentary deflection in the galvanometer but it dies out shortly
there is no effect when the key is removed.
3. There are momentary galvanometer deflections that die out shortly; the
deflections are in the same direction.
4. There are momentary galvanometer deflections that die out shortly; the
deflections are in opposite directions.
Q7.A circular loop placed in a plane perpendicular to the plane of paper carries a
current when the key is on. The current as seen from points A and B (in the pla
of paper and on the axis of the coil) is anticlockwise and clockwise respectivel
The magnetic field lines point from B to A. The N-pole of the resultant magne
on the face close to:
1. A.
2. B.
3. A if the current is small, and B if the large.
4. B if current is small and A if the current is large.
Q8.Each one of the following changes will increase emf (or voltage) in a simple
generator except:
1. Increasing the number of turns in the armature coil.
BHANDARA
Test / Exam Name: Magnetic Effect Of Electric Standard: 10th Subjec
Current
Student Name: Section: Roll No
Questions: 2
Instructions
1. ATTEMPT ALL THE QUESTION
SECTION A. MULTIPLE CHOICE QUESTION
Q1.In the followin questions, a statement of Assertion is given by to correspondin
statement of Reason. Of the statement mark the correct answer as:
1. If both Assertion and Reason are true and Reason is the correct explanatio
Assertion.
2. If both Assertion and Reason are true, but Reason is not the correct
explanation of Assertion.
3. If Assertion is true, but Reason is false.
4. If Assertion is false, but Reason is true.
5. If Assertion and Reason both are false.
Assertion: In an AC generator slip-rings type of commutator is used.
Reason: Slip-rings are full rings with which the ends of coil are in contact.
Q2.For two statements are given-one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b
and (d) as given below:
1. Both A and R are true, and R is correct explanation of the assertion.
2. Both A and R are true, but R is not the correct explanation of the assertion
3. A is true, but R is false.
4. A is false, but R is true.
Assertion: Magnetic field lines forms closed loops in nature.
Reason: Mono-magnetic pole does not exist in nature.
Q3.For two statements are given-one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b
and (d) as given below:
1. Both A and R are true, and R is correct explanation of the assertion.
2. Both A and R are true, but R is not the correct explanation of the assertion
3. A is true, but R is false.
4. A is false, but R is true.
Assertion: The magnetic field intensity at the center of a circular coil carrying
current changes, if the current through the coil is doubled.
Reason: The magnetic field intensity is dependent on current in conductor.
, 1. A.
2. B.
3. A if the current is small, and B if the current is large.
4. B if the current is small and A if the current is large.
Q6.In the arrangement shown in Figure there are two coils wound on a non-
conducting cylindrical rod. Initially the key is not inserted. Then the key is ins
and later removed. Then,
1. The deflection in the galvanometer remains zero throughout.
2. There is a momentary deflection in the galvanometer but it dies out shortly
there is no effect when the key is removed.
3. There are momentary galvanometer deflections that die out shortly; the
deflections are in the same direction.
4. There are momentary galvanometer deflections that die out shortly; the
deflections are in opposite directions.
Q7.A circular loop placed in a plane perpendicular to the plane of paper carries a
current when the key is on. The current as seen from points A and B (in the pla
of paper and on the axis of the coil) is anticlockwise and clockwise respectivel
The magnetic field lines point from B to A. The N-pole of the resultant magne
on the face close to:
1. A.
2. B.
3. A if the current is small, and B if the large.
4. B if current is small and A if the current is large.
Q8.Each one of the following changes will increase emf (or voltage) in a simple
generator except:
1. Increasing the number of turns in the armature coil.
