1
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Action and reaction can never balance out because

A
They are unequal in magnitudes
B
Though they are equal in magnitude and opposite in direction they act on different bodies.
C
They are equal in magnitude but not opposite always.
D
They are unequal in magnitudes even though opposite in direction
2
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

The current in a coil changes steadily from $$3 \mathrm{~A}$$ to $$5 \mathrm{~A}$$ in $$0.2 \mathrm{~s}$$ when an emf of $$2 \mu \mathrm{V}$$ is induced in it. The self-inductance of the coil is

A
0.2 mH
B
20 $$\mu H$$
C
2 $$\mu H$$
D
0.2 $$\mu H$$
3
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

COMEDK 2024 Evening Shift Physics - Semiconductor Devices and Logic Gates Question 11 English

The output of the given circuit is

A. Negatively rectified half wave

B. Positively rectified half wave

C. Negatively rectified full wave

D. Zero all times

A
B
B
D
C
A
D
C
4
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

For a paramagnetic material, the dependence of the magnetic susceptibility $$\chi$$ on the absolute temperature is given as

A
Independent of $$\mathrm{T}$$
B
$$ X \propto \frac{1}{T^2} $$
C
$$ X \propto T $$
D
$$ X \propto\frac{1}{T} $$
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