1
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

In which of the following case no force exerted by a magnetic field on a charge?

A
Moving with constant velocity
B
Moving in a circle
C
At rest
D
Moving along a curved path
2
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

A long thin hollow metallic cylinder of radius R has a current i ampere. The magnetic induction B away from the axis at a distance r from the axis varies as shown in

AP EAPCET 2021 - 19th August Morning Shift Physics - Moving Charges and Magnetism Question 11 English 1AP EAPCET 2021 - 19th August Morning Shift Physics - Moving Charges and Magnetism Question 11 English 2

A
(i)
B
(ii)
C
(iii)
D
(iv)
3
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

The plane of a dip circle is set in the geographic meridian and the apparent dip is $$\delta_1$$. It is then set in a vertical plane perpendicular to the geographic meridian. The apparent dip angle is $$\delta_2$$. The declination $$\theta$$ at the place is

A
$$\tan ^{-1}\left(\tan _1 \tan _2\right)$$
B
$$\tan ^{-1}\left(\tan \delta_1+\tan \delta_2\right)$$
C
$$\tan ^{-1}\left(\frac{\tan \delta_1}{\tan \delta_2}\right)$$
D
$$\tan ^{-1}\left(\tan \delta_1-\tan \delta_2\right)$$
4
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

Assertion (A) It is more difficult to move a magnet into a coil with more loops.

Reason (R) This is because emf induced in each current loop resists the motion of the magnet.

A
Both A and R are true and R is a correct explanation for A.
B
Both A and R are true but R is not a correct explanation for A.
C
A is true and R is false.
D
A is false, R is true.
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