1
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The number of turns in the primary of a transformer are 1000 and in secondary 3000. If 80 V a.c. is applied to the primary, the potential difference per turn of the secondary coil is

A
0.02 V
B
0.04 V
C
0.08 V
D
0.16 V
2
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A current carrying circular loop of radius ' $R$ ' and current carrying long straight wire are placed in the same plane. The current through circular loop and long straight wire are ' $I_c$ ' and ' $\mathrm{I}_{\mathrm{w}}$ ' respectively. The perpendicular distance between centre of the circular loop and wire is ' d '. The magnetic field at the centre of the loop will be zero when separation ' $d$ ' is equal to

A
$\frac{\mathrm{RI}_{\mathrm{w}}}{\pi \mathrm{I}_{\mathrm{c}}}$
B
$\frac{\mathrm{RI}_{\mathrm{c}}}{\pi \mathrm{I}_{\mathrm{w}}}$
C
$\frac{\pi \mathrm{I}_{\mathrm{c}}}{\mathrm{RI}_{\mathrm{w}}}$
D
$\frac{\pi \mathrm{I}_{\mathrm{w}}}{\mathrm{RI}_{\mathrm{c}}}$
3
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

All the springs in fig. (a), (b) and (c) are identical, each having force constant K . Mass attached to each system is ' $m$ '. If $T_a, T_b$ and $T_c$ are the time periods of oscillations of the three systems respectively, then

MHT CET 2024 11th May Evening Shift Physics - Simple Harmonic Motion Question 42 English

A
$\mathrm{T}_{\mathrm{a}}=\sqrt{2} \mathrm{~T}_{\mathrm{b}}$
B
$\mathrm{T}_{\mathrm{a}}=\frac{\mathrm{T}_{\mathrm{c}}}{\sqrt{2}}$
C
$T_b=2 T_a$
D
$T_b=2 T_c$
4
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The point charges $+\mathrm{q},-\mathrm{q},-\mathrm{q},+\mathrm{q},+\mathrm{Q}$ and -q are placed at the vertices of a regular hexagon ABCDEF as shown in figure. The electric field at the centre of hexagon ' $O$ ' due to the five charges at $A, B, C, D$ and $F$ is thrice the electric field at centre ' $O$ ' due to charge +Q at E alone. The value of Q is

MHT CET 2024 11th May Evening Shift Physics - Electrostatics Question 40 English

A
$\frac{+q}{3}$
B
$\frac{+q}{5}$
C
$\frac{+q}{6}$
D
$+6 q$
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