# Relationship between voltage, power and current

davenn
Gold Member
Check again the amount by which current and power changed. They don't change by the same factor.

I royally screwed up .... I blame old age and senility  @imtiaz ... humble apologies answer b) current ..... should have been answer

for power

10V x 1 A = 10 W

double the voltage, the current doubles as correctly stated but the power dissipated quadruples

20V x 2A = 40W

@gneill .... cheers

Dave

• I royally screwed up .... I blame old age and senility  @imtiaz ... humble apologies answer b) current ..... should have been answer

for power

10V x 1 A = 10 W

double the voltage, the current doubles as correctly stated but the power dissipated quadruples

20V x 2A = 40W

@gneill .... cheers

Dave
So current is correct

• davenn
Hy,
If we double the voltage than what will be double
A. power
B. Current
C. Resistance
D. Both a & b
If circuit is simple

Hy,
If we double the voltage than what will be double
A. power
B. Current
C. Resistance
D. Both a & b
If circuit is double