Question

An increase in voltage causes a greater electric resistance in a circuit.  true or false???

Answer 1

True
Because resistance= voltage/current
when current is constant and voltage increases, resistant increases

Answer 2

False

Step-by-step explanation:

the resistance of the material stays the same as long as the material does not heat up. It does not depend on the voltage applied.

Resistance depends on

1. the material it is made of(ρ),
2. the length(L) and
3. cross sectional area (A)

`R = \rho L/A`

When the voltage is increased, the current will increase but the resistance will remain unchanged.

V = IR