1
MHT CET 2023 9th May Morning Shift
+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
$$1000 \mathrm{~W}$$
2
MHT CET 2021 21th September Evening Shift
+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
3
MHT CET 2021 21th September Evening Shift
+1
-0

The inductive reactance of a coil is R$$\Omega$$. If the inductance of a coil is doubled and frequency of a.c. supply is also doubled then the new inductive reactance will be

A
2R
B
8R
C
$$\mathrm{\frac{R}{2}}$$
D
4R
4
MHT CET 2021 21th September Evening Shift
+1
-0

Three pure inductors each of inductance 6H are connected as shown in the figure. Their equivalent inductance between the points 'P' and 'Q' is

A
0.5 H
B
18 H
C
6.3 H
D
2 H
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Physics
Mechanics
Optics
Electromagnetism
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
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Algebra
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Coordinate Geometry
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