1
MHT CET 2024 15th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In an a.c. circuit, the reactance of a coil is $\sqrt{3}$ times its resistance. The phase difference between the voltage across the coil to the current through the coil will be

A
$\tan ^{-1}(0)$
B
$\tan ^{-1} \frac{1}{\sqrt{3}}$
C
$\tan ^{-1}(1)$
D
$\tan ^{-1}(\sqrt{3})$
2
MHT CET 2024 15th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A series $\mathrm{L}-\mathrm{C}-\mathrm{R}$ circuit containing a resistance ' $R$ ' has angular frequency ' $\omega$ '. At resonance the voltage across resistance and inductor are ' $V_R$ ' and ' $\mathrm{V}_{\mathrm{L}}$ ' respectively, then value of capacitance will be

A
$\frac{V_R}{V_L \omega R}$
B
$\frac{V_L}{V_R R \omega^2}$
C
$\frac{V_R}{V_L R \omega^2}$
D
$\frac{V_L R}{V_R \omega}$
3
MHT CET 2024 15th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Alternating current of peak value $\left(\frac{2}{\pi}\right)$ A flows through the primary coil of a transformer. The coefficient of mutual inductance between primary and secondary coils is 1 H . The peak e.m.f. induced in secondary coil (Frequency of a.c. $=50 \mathrm{~Hz}$ )

A
50 V
B
100 V
C
150 V
D
200 V
4
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

When 100 V d.c. is applied across a solenoid, a current of 1 A flows in it. When 100 a.c. is applied across it, the current drops to 0.5 A. If the frequency is 50 Hz , the impedance and inductance is

A
$200 \Omega, \sqrt{3} / \pi \mathrm{H}$
B
$100 \Omega, \sqrt{3} \mathrm{H}$
C
$200 \Omega, 1 \mathrm{H}$
D
$100 \Omega, 1 \mathrm{H}$
MHT CET Subjects
EXAM MAP