Question

1 point
Q7- Assertion- A rheostat is
often used to change
resistance of the circuit.
Reason- Variable resistance
regulates current without
changing the voltage source.
a)Both (A) and (R) are true.(R) is the
correct explanation of (A).
b) (A) is true and (R) is false.
c) (A) is false but (R) is true.
d) Both (A) and (R) are true.​

Answer 1

Answer: D

Explanation:

Answer 2

Answer:

ans is d bro

Explanation:

rheostat is a variable resistance which we use to change resistance asper our need and on changing resistance current change but their is no effect on voltage source at all. both statement is correct but not explain each other