1
MHT CET 2022 11th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two parallel conducting wires of equal length are placed distance 'd' apart, carry currents '$$\mathrm{I}_1$$' and '$$\mathrm{I}_2$$' respectively in opposite directions. The resultant magnetic field at the midpoint of the distance between both the wires is

A
$$\frac{\mu_0\left(I_1-I_2\right)}{\pi \mathrm{d}}$$
B
$$\frac{\mu_0\left(I_1+I_2\right)}{2 \pi d}$$
C
$$\frac{\mu_0\left(I_1-I_2\right)}{2 \pi \mathrm{d}}$$
D
$$\frac{\mu_0\left(I_1+I_2\right)}{\pi d}$$
2
MHT CET 2022 11th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

An electron and a proton having the same momenta enter perpendicularly into a magnetic field. What are their trajectories in the field?

A
Path of the electron is more curved than that of proton
B
They will travel undeflected
C
Path of the proton is more curved than that of the electron
D
Both the electron and the proton will move along the same curved path but they will move in opposite directions
3
MHT CET 2021 24th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

A solenoid 2 m long and 4 cm in diameter has 4 layers of windings of 1000 turns each and carries a current of 5 A. What is the magnetic field at its centre along the axis? [$$\mu_0=4\pi\times10^{-7}$$ Wb/Am]

A
$$10^{-3}$$ T
B
$$2\pi\times10^{-3}$$ T
C
$$4\pi\times10^{-3}$$ T
D
$$8\pi\times10^{-3}$$ T
4
MHT CET 2021 24th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

A particle of charge 'q' and mass 'm' moves in a circular orbit of radius 'r' with angular speed '$$\omega$$'. The ratio of the magnitude of its magnetic moment to that of its angular momentum depends on

A
$$\omega$$ and q
B
$$\omega$$ and m
C
q and m
D
$$\omega$$, q and m
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