Electric Current And Its Uses Flashcards
1
Q
Ohms law?
A
V=IR
2
Q
In a series circuit, what is the total resistance?
A
The SUM of all resistances
3
Q
What is total resistance in a parallel circuit?
A
1/Rt = 1/R1 + 1/R2 + 1/R3
4
Q
What are positive and negative thermal coefficients?
A
Simply describes materials which gain or lose resistance with heat
5
Q
What is a short circuit?
A
When the terminals of a power sore are connected to a circuit with almost no resistance so the current is dangerously large.
