circuits

Front

What 'flows' in a wire?

Back

Electrons

Front

What is the unit of resistance?

Back

Ohm (Ω)

Front

What is Ohm's Law?

Back

V = IR, where V is voltage, I is current, and R is resistance.

Front

What is the formula to calculate total resistance in a series circuit?

Back

R_total = R1 + R2 + R3 + ...

Front

What is the formula to calculate total resistance in a parallel circuit?

Back

1/R_total = 1/R1 + 1/R2 + 1/R3 + ...

Front

What is the relationship between voltage, current, and resistance?

Back

Ohm's Law states that voltage is equal to the product of current and resistance.

Front

What is the total voltage in a circuit with a 9V battery?

Back

9 Volts

Front

If a circuit has a total resistance of 12 ohms and a total current of 2 amps, what is the total voltage?

Back

V = IR = 12 ohms * 2 amps = 24 Volts.

Front

What is the current through a 180 ohm resistor with a voltage of 9V?

Back

I = V/R = 9V / 180Ω = 0.05 amps.

Front

What is the equivalent resistance of two resistors in series, 10 ohms and 15 ohms?

Back

R_total = 10Ω + 15Ω = 25Ω.