Project 4 Review

The voltage drop across a circuit elements is equal to its ___ times the current flowing through it.

• power

• resistance

• voltage

• current

The power dissipated by a circuit elements is equal to the current passing through it times the ______.

• energy usage of the element

• resistance of the element

• voltage drop across it

• kilowatt hours

What type of circuit is depicted here?

• series

• parallel

• combination

• open

What type of circuit is depicted here?

• series

• parallel

• combination

• open

A hot plate connected across a potential difference of 80 V has a resistance of 10 Ω. What is the current in the hot plate? Answer in units of A.

• 90 A

• 70 A

• 800 A

• 8 A

A typical color television draws 6 A of current when connected across a potential difference of 480 V. What is the effective resistance of the television set? Answer in units of Ω.

• 80 Ω

• 2880 Ω

• 474 Ω

• 486 Ω

A 10 V automobile battery is connected to an electric starter motor. The current through the motor is 100 A. How much power does the motor dissipate? Answer in units of W.

• 100 W

• 10 W

• 1000 W

• 0.1 W

A 10 V automobile battery is connected to an electric starter motor. It dissipates 100 W of power. How much energy does the battery deliver to the motor during a 5 s period? Answer in units of J.

• 1000 J

• 50 J

• 500 J

• 5000 J

What is the equivalent resistance for this circuit if each resistor has a resistance of 3 Ω?

• 1 Ω

• 9 Ω

• 3 Ω

• 6 Ω

What is the electric force between an object with a charge of +1 C and an object with a charge of -1 C that are 1 m apart?

• 9 N

• -9x10⁹ N

• 9x10^-9 N

• -9 N