1
MHT CET 2023 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two parallel wires of equal lengths are separated by a distance of $$3 \mathrm{~m}$$ from each other. The currents flowing through $$1^{\text {st }}$$ and $$2^{\text {nd }}$$ wire is $$3 \mathrm{~A}$$ and 4.5 A respectively in opposite directions. The resultant magnetic field at mid point between the wires $$\left(\mu_0=\right.$$ permeability of free space)

A
$$\frac{\mu_0}{2 \pi}$$
B
$$\frac{3 \mu_0}{2 \pi}$$
C
$$\frac{7 \mu_0}{2 \pi}$$
D
$$\frac{5 \mu_0}{2 \pi}$$
2
MHT CET 2023 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Three point charges $$+\mathrm{q},+2 \mathrm{q}$$ and $$+\mathrm{Q}$$ are placed at the three vertices of an equilateral triangle. If the potential energy of the system of three charges is zero, the value of $$Q$$ in terms of $$q$$ is

A
$$\mathrm{Q}=-\frac{2 \mathrm{q}}{3}$$
B
$$Q=-\frac{1}{3} q$$
C
$$\mathrm{Q}=\frac{3 \mathrm{q}}{2}$$
D
$$Q=\frac{q}{2}$$
3
MHT CET 2023 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If a gas is compressed isothermally then the r.m.s. velocity of the molecules

A
decreases.
B
increases.
C
remains the same.
D
first decreases and then increases.
4
MHT CET 2023 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The bob of a simple pendulum of length '$$L$$' has a mass '$$\mathrm{m}$$' and charge '$$\mathrm{q}$$'. The pendulum is suspended between the plates of a charged parallel plate capacitor. The direction of electric field is shown in figure. The period of oscillations of the simple pendulum is (acceleration due to gravity $$\mathrm{g}>\mathrm{qE} / \mathrm{m}$$ )

MHT CET 2023 11th May Morning Shift Physics - Electrostatics Question 34 English

A
$$2 \pi \sqrt{\frac{\mathrm{L}}{\mathrm{g}}}$$
B
$$2 \pi\left[\frac{\mathrm{L}}{\frac{\mathrm{qE}}{\mathrm{m}}-\mathrm{g}}\right]^{\frac{1}{2}}$$
C
$$2 \pi\left[\frac{\mathrm{L}}{\mathrm{g}-\frac{\mathrm{qE}}{\mathrm{m}}}\right]^{\frac{1}{2}}$$
D
$$2 \pi\left[\frac{\mathrm{L}}{\mathrm{g}+\frac{\mathrm{qE}}{\mathrm{m}}}\right]^{\frac{1}{2}}$$
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