CameraIcon

SearchIcon

MyQuestionIcon

1

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

Colour Coding of Resistors

The variable ...

Question

The variable resistance can be obtained through

A

resistor

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

B

rheostat

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

C

open switch

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

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 A rheostat
Rheostat is a variable resistor, which is used to control the flow of electric current by manually increasing or decreasing the resistance.
Rheostat is generally used in the applications where high voltage or current is required.

Suggest Corrections

thumbs-up

0

Similar questions

Q. The smallest resistance that can be obtained by combining 10 resistors each of resistance

10 Ω

Q. The minimum resistance that can be obtained by connecting 5 resistance of

\frac{1}{4} Ω

Q. The smallest resistance that can be obtained by the combination of

n

resistors, each of resistance

R

Q. In the adjoining potentiometer circuit, the resistance of uniform cross section the potentiometer wire AB of Length 1 m is 10

Ω

. When the variable resistance R = 10

Ω

, the balance point is obtained for length l as shown. If the variable resistance is doubled, the new balance length is

Q. Equivalent resistance between (a) & (b) in the circuit can be obtained by:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Ohm's Law in Scalar Form

PHYSICS

Watch in App

explore_more_icon

Explore more

Colour Coding of Resistors

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon