CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Series Combination of Cells

The maximum c...

Question

The maximum current that can be measured by a galvanometer of resistance $40 Ω$ is $10 m A$ . If it is converted into a voltmeter that can read upto $50 V$ . the resistance to be connected in series with the galvanometer (in ohms) is:

A

2010

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

4050

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

5040

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

4960

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $4960$
Resistance connected in series with a galvanometer to make it a voltmeter= $\frac{V}{I_{g}} - R_{g}$
$= \frac{50 V}{0.01 A} - 40 Ω$ $= 4960 Ω$

Suggest Corrections

thumbs-up

0

Similar questions

Q. The maximum current that can be measured by a galvanometer of resistance

40 Ω

10

m A

. It is converted into a voltmeter that can read upto

50 V

. The resistance to be connected in series with the galvanometer(in ohms) is:

Q. A maximum current of

5 m A

can be passed through a galvanometer of resistance

40 Ω

. The resistance to be connected in series to convert it into a volt meter of range

0 - 50 V

Q. State the principle of working of a galvometer.
A galvanometer of resistance G is converted into a voltmeter to measure upto V volts by connecting a resistance

R_{1}

in series with the coil. If a resistance

R_{2}

is connected in series with it, then it can measure upto V/2 volts. Find the resistance, in terms of

R_{1}

R_{2}

, required to be connected to convert it into a voltmeter that can read upto 2V. Also find the resistance G of the galvanometer in terms of

R_{1}

R_{2}

Q. A galvanometer (coil resistance

99 Ω

) is converted into a ammeter using a shunt of

1 Ω

and connected as shown in the figure

(i)

. The ammeter reads

3 A

. The same galvanometer is converted into a voltmeter by connecting a resistance of

101 Ω

in series. This voltmeter is connected as shown in figure

(i i)

. Its reading is found to be

4 / 5

of the full scale reading. Find the internal resistance

r

of the cell (in ohms)

Q. A galvanometer of 25

Ω

resistance can read a maximum current of 6 mA. It can be used as a voltmeter to measure maximum 6V by connecting a resistance to galvanometer. Identify the correct choice in the given answers :

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Cell and Cell Combinations

PHYSICS

Watch in App

explore_more_icon

Explore more

Series Combination of Cells

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon