1
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The coil of an a.c. generator has 100 turns, each of cross-sectional area $$2 \mathrm{~m}^2$$. It is rotating at constant angular speed $$30 ~\mathrm{rad} / \mathrm{s}$$, in a uniform magnetic field of $$2 \times 10^{-2} \mathrm{~T}$$. If the total resistance of the circuit is $$600 ~\Omega$$ then maximum power dissipated in the circuit is

A
$$6 \mathrm{~W}$$
B
$$9 \mathrm{~W}$$
C
$$12 \mathrm{~W}$$
D
$$24 \mathrm{~W}$$
2
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A capacitor, an inductor and an electric bulb are connected in series to an a.c. supply of variable frequency. As the frequency of the supply is increased gradually, then the electric bulb is found to

A
increase in brightness.
B
decrease in brightness.
C
increase, reach a maximum and then decrease in brightness.
D
show no change in brightness.
3
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In an $$\mathrm{AC}$$ circuit, the current is $$\mathrm{i}=5 \sin \left(100 \mathrm{t}-\frac{\pi}{2}\right) \mathrm{A}$$ and voltage is $$\mathrm{e}=200 \sin (100 \mathrm{t})$$ volt. Power consumption in the circuit is $$\left(\cos 90^{\circ}=0\right)$$

A
$$200 \mathrm{~W}$$
B
$$0 \mathrm{~W}$$
C
$$40 \mathrm{~W}$$
D
$$1000 \mathrm{~W}$$
4
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

In LCR series resonant circuit, at resonance, voltage across 'L' and 'C' will cancel each other because they are

A
90$$^\circ$$ out of phase
B
90$$^\circ$$ in phase
C
180$$^\circ$$ in phase
D
180$$^\circ$$ out of phase
MHT CET Subjects
EXAM MAP
Joint Entrance Examination
JEE MainJEE AdvancedWB JEEBITSATMHT CET
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN