Topic 21 - energy in circuits Flashcards
1
Q
what is the equation for energy transferred in circuits
A
energy transferred (J) = current (A) x volts (V) x time (S) E = I x V x T
2
Q
what does energy transfer depend on
A
current, p.d. and time
3
Q
what happens if the temperature gets too high in a circuit
A
components can melt
4
Q
how do fuses protect circuits
A
they melt and break the circuit if the current gets too high
