Worksheet 3-Ohm's Law

Question 1

Define Ohm’s Law in the relationship of voltage to current and resistance.

Answer 1

Voltage (E) is the product of current (I) and Resistance (R).

E=I x R

Question 2

Define Ohm’s Law for the relationship of current to voltage and resistance.

Answer 2

Current (I) is the quotient of Voltage (E) divided by Resistance (R).

I=E/R

Question 3

Define Ohm’s Law for the relationship of resistance to voltage and current.

Answer 3

Resistance (R) is the quotient of voltage (E) divided by current (I).

R = E/I

Question 4

Using Ohm’s Law, solve for the voltage when given current as 2 amps to the resistanceof 5 Ohms. Write our the formula.

Answer 4

E = 2A x 5 Ohms

E=10V

Question 5

Solve for an unknown current when given the voltage is 12 volts and the resistance is 6 ohms. Show your formula.

Answer 5

I = 12V/6 ohms

I=2A

Question 6

Solve for resistance when given the voltage is 120VDC and the current is 60A. Show your formula.

Answer 6

R=120V/60A

R=2 Ohms

Question 7

What is the relationship of power to voltage and current. Write out the formula.

Answer 7

Power, measured in Watts (P) is the product of Voltage (E) and Current (I).

P=I x E

Question 8

How much power is being produced in a circuit when the measured current is 60A and the applied voltage is 110V?