1
MHT CET 2023 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In a series LR circuit, $$X_L=R$$, power factor is $$P_1$$. If a capacitor of capacitance $$C$$ with $$X_C=X_L$$ is added to the circuit the power factor becomes $$P_2$$. The ratio of $$P_1$$ to $$P_2$$ will be

A
$$1: 3$$
B
$$1: \sqrt{2}$$
C
$$1: 1$$
D
$$1: 2$$
2
MHT CET 2023 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If only $$1 \%$$ of total current is passed through a galvanometer of resistance '$$G$$' then the resistance of the shunt is

A
$$\frac{G}{25} \Omega$$
B
$$\frac{\mathrm{G}}{49} \Omega$$
C
$$\frac{\mathrm{G}}{2} \Omega$$
D
$$\frac{\mathrm{G}}{99} \Omega$$
3
MHT CET 2023 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A voltmeter of resistance $$150 \Omega$$ connected across a cell of e.m.f. $$3 \mathrm{~V}$$ reads $$2.5 \mathrm{~V}$$. What is the internal resistance of the cell?

A
$$10 \Omega$$
B
$$15 \Omega$$
C
$$20 \Omega$$
D
$$30 \Omega$$
4
MHT CET 2023 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two conducting circular loops of radii '$$R_1$$' and '$$R_2$$' are placed in the same plane with their centres coinciding. If $$R_1>R_2$$, the mutual inductance $$M$$ between them will be directly proportional to

A
$$\frac{R_1}{R_2}$$
B
$$\frac{R_2}{R_1}$$
C
$$\frac{R_1^2}{R_2}$$
D
$$\frac{R_2^2}{R_1}$$
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