Activity 1.2.3 Intro to Electricity

Front

In the equation V=IR, the I stands for _____________.

Back

Current

Front

Current is measured in what units?

Back

Amperes

Front

What law states that current in a resistor varies in direct proportion to the voltage applied to it and is inversely proportional to the resistor’s value?

Back

Ohm's Law

Front

What law states that the sum of all voltage drops in a series circuit equals the total applied voltage?

Back

Kirchhoff's Voltage Law

Front

True or False: When you measure Current, it must flow through the meter.

Back

True

Front

What is the unit of measurement for voltage?

Back

Volts

Front

What is the unit of measurement for resistance?

Back

Ohms

Front

What is the relationship between voltage, current, and resistance in a circuit?

Back

V = IR (Ohm's Law)

Front

What happens to the current if the resistance increases while the voltage remains constant?

Back

The current decreases.

Front

What is the total resistance in a series circuit with three resistors of 2 Ohms, 3 Ohms, and 5 Ohms?

Back

10 Ohms (R_total = R1 + R2 + R3)