MHT CET 2023 10th May Morning Shift | Current Electricity Question 20 | Physics

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?

$$10 \Omega$$

$$15 \Omega$$

$$20 \Omega$$

$$30 \Omega$$

MHT CET 2023 9th May Evening Shift

MCQ (Single Correct Answer)

-0

A galvanometer of resistance $$20 ~\Omega$$ gives a deflection of 5 divisions when $$1 \mathrm{~mA}$$ current flows through it. The galvanometer scale has 50 divisions. To convert the galvanometer into a voltmeter of range 25 volt, we should connect a resistance of

$$1240 ~\Omega$$ in series.

$$2480 ~\Omega$$ in series.

$$2480 ~\Omega$$ in parallel.

$$20 ~\Omega$$ in parallel.

MHT CET 2023 9th May Evening Shift

MCQ (Single Correct Answer)

-0

Five current carrying conductors meet at a point '$$\mathrm{O}$$' as shown in figure. The magnitude and direction of the current in conductor '$$O P$$' is

MHT CET 2023 9th May Evening Shift Physics - Current Electricity Question 54 English

$$6.5 \mathrm{~A}$$ from $$\mathrm{O}$$ to $$\mathrm{P}$$.

$$9 \mathrm{~A}$$ from $$\mathrm{P}$$ to $$\mathrm{O}$$.

$$10.5 \mathrm{~A}$$ from $$\mathrm{P}$$ to $$\mathrm{O}$$.

$$11.5 \mathrm{~A}$$ from $$\mathrm{O}$$ to $$\mathrm{P}$$.

MHT CET 2023 9th May Morning Shift

MCQ (Single Correct Answer)

-0

A galvanometer of resistance $$\mathrm{G}$$ is shunted with a resistance of $$10 \%$$ of $$\mathrm{G}$$. The part of the total current that flows through the galvanometer is

$$\frac{1}{11} \mathrm{I}$$

$$\frac{2}{11} \mathrm{I}$$

$$\frac{1}{10} \mathrm{I}$$

$$\frac{1}{5} \mathrm{I}$$

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