T5D2014: Ohm’s Law: formulas and usage
T5D012014:
What formula is used to calculate current in a circuit?
Current (I) equals voltage (E) divided by resistance (R)
Current (I) equals voltage (E) multiplied by resistance (R)
Current (I) equals voltage (E) added to resistance (R)
Current (I) equals voltage (E) minus resistance (R)
T5D022014:
What formula is used to calculate voltage in a circuit?
Voltage (E) equals current (I) multiplied by resistance (R)
Voltage (E) equals current (I) divided by resistance (R)
Voltage (E) equals current (I) added to resistance (R)
Voltage (E) equals current (I) minus resistance (R)
T5D032014:
What formula is used to calculate resistance in a circuit?
Resistance (R) equals voltage (E) divided by current (I)
Resistance (R) equals voltage (E) multiplied by current (I)
Resistance (R) equals voltage (E) added to current (I)
Resistance (R) equals voltage (E) minus current (I)
T5D042014:
What is the resistance of a circuit in which a current of 3 amperes flows through a resistor connected to 90 volts?
30 ohms
3 ohms
93 ohms
270 ohms
T5D052014:
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
18 ohms
0.125 ohms
13.5 ohms
T5D062014:
What is the resistance of a circuit that draws 4 amperes from a 12volt source?
3 ohms
16 ohms
48 ohms
8 Ohms
T5D072014:
What is the current flow in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?
1.5 amperes
9600 amperes
200 amperes
0.667 amperes
T5D082014:
What is the current flowing through a 100ohm resistor connected across 200 volts?
2 amperes
20,000 amperes
0.5 amperes
100 amperes
T5D092014:
What is the current flowing through a 24ohm resistor connected across 240 volts?
10 amperes
24,000 amperes
0.1 amperes
216 amperes
T5D102014:
What is the voltage across a 2ohm resistor if a current of 0.5 amperes flows through it?
1 volt
0.25 volts
2.5 volts
1.5 volts
T5D112014:
What is the voltage across a 10ohm resistor if a current of 1 ampere flows through it?
10 volts
1 volt
11 volts
9 volts
T5D122014:
What is the voltage across a 10ohm resistor if a current of 2 amperes flows through it?
20 volts
8 volts
0.2 volts
12 volts
Color key:

● = Unseen

● = Weak

● = Review

● = Learned

● = Incorrect answer
