Ohm's Law - T5D Flashcards Preview

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Flashcards in Ohm's Law - T5D Deck (12):
1

What formula is used to calculate current in a circuit?

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

2

What formula is used to calculate voltage in a circuit?


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

3

What formula is used to calculate resistance in a circuit?

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

4

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

30 ohms

5

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

8 ohms

6

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

3 ohms

7

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

1.5 amperes

8

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

2 amperes

9

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

10 amperes

10

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

1 volt

11

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

10 volts

12

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

20 volts