Ohm's Law and Circuits QUIZ

The illustration depicts a short circuit.

• True

• False

In a closed circuit, how does battery voltage affect current?

• As voltage increases, current increases.

• As voltage increases, current decreases.

• Voltage has no affect on current.

• If voltage exceeds current, a short circuit circuit will develop.

Which of the symbols represents current in an electrical circuit?

• i

• c

• e

• r

An electrical circuit is powered by a 1.5-volt battery and contains a light bulb producing 5 Ohms of resistance. There is also another 5 Ohm resistor in the circuit. How many amps of current are in this circuit? HINT: V = IR

• 0.15 amps

• 15.0 amps

• 6.67 amps

• 1.50 amps

An electrical circuit is powered by a 12-volt battery and contains a light bulb. The current flowing in the circuit is 20 amps. What is the resistance of the light bulb? HINT: V = IR

• 0.6 Ohms

• 240 Ohms

• 1.67 Ohms

• 12 Ohms

An electrical circuit is powered by a battery and contains a light bulb producing 1.5 Ohms of resistance. The circuit is flowing at 4 amps of current. What is the voltage of the battery?

HINT: V = IR

• 6.0 volts

• 1.5 volts

• 9.0 volts

• 12.0 volts

What will happen if one light bulb is removed from this circuit?

• The other bulbs will go out.
• The other bulbs will stay on
• The other bulbs will get dimmer.
• The battery will become stronger.

When you remove a bulb from a three bulb circuit, and the other two bulbs go off, then the bulbs must have been connected in __________.

• parallel
• series
• open
• closed

In a parallel circuit which of the following is the same value throughout the circuit?

• Voltage
• Current
• Resistance
• Charge

What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?

• 25 V
• 10 V
• 2.5 V
• 0.4 V