Ohm's Law - T5D

Question 1

What formula is used to calculate current in a circuit?

Answer 1

Current (I) equals voltage (E) divided by resistance (R)

Question 2

What formula is used to calculate voltage in a circuit?

Answer 2

Voltage (E) equals current (I) multiplied by resistance (R)

Question 3

What formula is used to calculate resistance in a circuit?

Answer 3

Resistance (R) equals voltage (E) divided by current (I)

Question 4

What is the resistance of a circuit in which a current of 3 amperes flows through a resistor connected to 90 volts?

Answer 4

30 ohms

Question 5

What is the resistance in a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

Answer 5

8 ohms

Question 6

What is the resistance of a circuit that draws 4 amperes from a 12-volt source?

Answer 6

3 ohms

Question 7

What is the current flow in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?

Answer 7

1.5 amperes

Question 8

What is the current flowing through a 100-ohm resistor connected across 200 volts?

Answer 8

2 amperes

Question 9

What is the current flowing through a 24-ohm resistor connected across 240 volts?

Answer 9

10 amperes

Question 10

What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

Answer 10

1 volt

Question 11

What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?

Answer 11

10 volts

Question 12

What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through it?

Answer 12

20 volts