circuits

In a series circuit, the voltage is the same everywhere in the circuit.

• True

• False

Which of the symbols represents current in an electrical circuit?

• I

• C

• V

• R

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

Solve for the total resistance of the circuit shown

• 50 V

• 1970 ohms

• 705 K ohms

• 20 Amps

The wattage value for any resistor is equal to ____.

• I X R

• V/R

• I X V

• I/R

When a resistor in a series circuit is replaced by another resistor with an increased resistance value, the total circuit current will __________.

• stay the same

• decrease

• increase

• double in value

This circuit has only one path for current to flow

• series

• parallel

• combination

• split

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

What is the difference between a conductor and an insulator?

• An insulator allows electricity to flow through it easily and a conductor does not
• A conductor allows electricity to flow through it easily and an insulator does not.
• An insulator is magnetic and a conductor is not
• A conductor is magnetic and an insulator is not