Physics - Electricity and Magnetism

​_______circuits use branches to allow current to pass through more than one path.

• Parallel

• Series

• Open

• Closed

In a ​ ______ circuit, all components are connected using a single pathway

• series

• parallel

• open

• closed

What is the total resistance of this circuit?

• 25 Ω

• 75 Ω

• 100 Ω

• 18.75 Ω

What is the total resistance of this circuit?

• 100 Ω

• 200 Ω

• 0.063 Ω

• 15.8 Ω

Conventionally, current is described as flowing from the ................ terminal of a battery to the ................ terminal.

• Negative.....negative

• Negative....positive

• Positive......negative

• Positive....positive

This is the symbol for

• ammeter

• light bulb

• resistor

• voltmeter

This is the symbol for

• ammeter

• light bulb

• resistor

• voltmeter

How do you calculate current from voltage (potential difference) and resistance?

• Current = voltage x resistance

• Current = resistance x power

• Current = voltage ÷ resistance

• Current = resistance ÷ voltage

How do you calculate resistance?

• Current x Voltage

• Voltage x Power

• Voltage ÷ Current

• Current ÷ Voltage

What is the unit of measurement for resistance?

• Voltage

• Ampere

• Watts

• Ohms