1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

From Ampere's circuital law for a long straight wire of circular cross-section carrying a steady current, the variation of magnetic field in the inside and outside region of the wire is

A
Uniform and remains constant for both the regions.
B
A linearly increasing function of distance upto the boundary of the wire and then linearly decreasing for the outside region.
C
A linearly increasing function of distance r upto the boundary of the wire and then decreasing one with $${1 \over r}$$ dependence for the outside region.
D
A linearly decreasing function of distance upto the boundary of the wire and then a linearly increasing one of the outside region.
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

A series LCR circuit with inductance 10 H, capacitance 10 $$\mu$$F, resistance 50 $$\Omega$$ is connected to an ac source of voltage, V = 200sin(100t) volt. If the resonant frequency of the LCR circuit is v0 and the frequency of the ac source is v, then

A
$${v_0} = v = 50$$ Hz
B
$${v_0} = v = {{50} \over \pi }$$ Hz
C
$${v_0} = {{50} \over \pi }$$ Hz, $$v = 50$$ Hz
D
$$v = 100$$ Hz, $${v_0} = {{100} \over \pi }$$ Hz
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

Two point charges $$-$$q and +q are placed at a distance of L, as shown in the figure.

NEET 2022 Phase 1 Physics - Electrostatics Question 9 English

The magnitude of electric field intensity at a distance R(R >> L) varies as:

A
$${1 \over {{R^2}}}$$
B
$${1 \over {{R^3}}}$$
C
$${1 \over {{R^4}}}$$
D
$${1 \over {{R^6}}}$$
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : The stretching of a spring is determined by the shear modulus of the material of the spring.

Reason (R) : A coil spring of copper has more tensile strength than a steel spring of same dimensions.

In the light of the above statements, choose the most appropriate answer from the options given below:

A
Both (A) and (R) are true and (R) is the correct explanation of (A)
B
Both (A) and (R) are true and (R) is not the correct explanation of (A)
C
(A) is true but (R) is false
D
(A) is false but (R) is true
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