MyQuestionIcon

1

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

Wheatstone Bridge

A galvanomete...

Question

A galvanometer is an instrument capable to measure

A

small voltage

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

B

small current

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

C

both (a) and (b)

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

D

none of these

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

Open in App

Solution

The correct option is B both (a) and (b)
A galvanometer is an instrument capable to measure small currents and small voltages.
To measure large currents, a shunt is added to convert it into an ammeter.
To measure large voltages, a series resistance is connected to convert it into a voltmeter.

Suggest Corrections

thumbs-up

0

Similar questions

Q. What resistance must be connected in parallel to the galvanometer to turn it into an ammeter capable of reading electric currents up to a 10.01 A ?

Q. Galvanometer is best described as an instrument to

Q. A copper constantan thermocouple produces an e.m.f. of

40 μ V

per C . The smallest temperature difference that can be measured with this thermocouple is 2.5 C , when a galvanometer capable of detecting as low as

10^{- 6}

amp. is employed. The resistance of that galvanometer is

Q. A moving coil galvanometer has

50

turns and each turn has an area

2 \times 10^{- 4} m^{2}

. The magnetic field produced by the magnet inside the galvanometer is

0.02 T

. The torsional constant of the suspension wire is

10^{- 4} N m - r a d^{- 1}

. When a current flows through the galvanometer, a full-scale deflection occurs if the coil rotates by

0.2 r a d

. The resistance of the coil of the galvanometer is

50 Ω

. This galvanometer is to be converted into an ammeter capable of measuring current in the range

0 - 1.0 A

. For this purpose, a shunt resistance is to be added in parallel to the galvanometer. The value of this shunt resistance, in ohms, is

Q. An ammeter and a milliammeter are converted from the galvanometer. Out of the two, Which current
measuring instrument has higher resistance?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Wheatstone Bridge

PHYSICS

Watch in App

explore_more_icon

Explore more

Wheatstone Bridge

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon