wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Why is rheostat connected in series?


Open in App
Solution

Rheostat: The rheostat is a variable resistor that varies the current flowing in an electric circuit by manually varying the value of resistance of the rheostat.

Draw a circuit using ammeter ,a rheostat and a cell - Brainly.in
Explanation:

  1. A rheostat is used to change the resistance of a circuit in order to change the current flowing through the circuit.
  2. By Ohm's law, we know that current and resistance are inversely proportional, and current decreases with the increase in resistance and vice-versa.
  3. In series connection since overall resistance is the sum of the individual resistance value of each resistor. So it will be easy in a series connection to vary the resistance of the whole circuit.

So in order to vary the current flowing through the circuit, the rheostat has to be connected in series.

Hence, the rheostat is connected in series.


flag
Suggest Corrections
thumbs-up
2
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Electrical Instruments
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon