1
AIIMS 2017
MCQ (Single Correct Answer)
+1
-0.33

A long wire having a semicircular loop of radius r carries a current i as shown in figure. The magnetic induction at the centre O due to entire

AIIMS 2017 Physics - Moving Charges and Magnetism Question 3 English

A
$$\frac{\mu_0 i}{4 r}$$
B
$$\frac{\mu_0 i^2}{4 r}$$
C
$$\frac{\mu_0 i}{4 r^2}$$
D
None of these
2
AIIMS 2017
MCQ (Single Correct Answer)
+1
-0.33

A conductor lies along the z-axis at $$-1.5 \leq Z \leq 1.5 \mathrm{~m}$$ and carries a fixed current of 10.0 $$\mathrm{A}$$ in $$-a_z$$ direction as shown in figure for a field $$B=3 \times 10^{-4} e^{-0.2 x} a_y \mathrm{~T}$$, the total power required to move the conductor at constant speed to $$x=2.0 \mathrm{~m}, y=0 \mathrm{~m}$$ in $$5 \times 10^{-3} \mathrm{~s}$$ is (Assume parallel motion along the $$x$$-axis)

AIIMS 2017 Physics - Moving Charges and Magnetism Question 6 English

A
1.57 W
B
2.97 W
C
4.45 W
D
9.87 W
3
AIIMS 2017
MCQ (Single Correct Answer)
+1
-0.33

Assertion : Cyclotron does not accelerate electron.

Reason : Mass of the electron is very small.

A
Both assertion and reason are true and reason is the correct explanation of assertion
B
Both assertion and reason are true but reason is not the correct explanation of assertion
C
Assertion is true but reason is false
D
Both assertion and reason are false.
AIIMS Subjects
EXAM MAP