Current and Voltage MCQs
Current and Voltage MCQs
Our team has conducted extensive research to compile a set of Current and Voltage MCQs. We encourage you to test your Current and Voltage knowledge by answering these multiple-choice questions provided below.
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1: When the stimulus voltage is increased, _______.
A. A greater-than-threshold depolarization results
B. A greater-than-threshold depolarization results and sodium permeability into the cell
C. Increases to overcome the potassium exiting
D. Sodium permeability into the cell decreases
E. Sodium permeability into the cell increases to overcome the potassium exiting
2: What is electric current?
A. The potential difference between two points in an electric circuit
B. The rate at which electric charges flow through a conductor
C. The resistance encountered by electric charges in a circuit
D. The energy stored in an electric field
3: What is the SI unit of electric current?
A. Volts
B. Amperes
C. Ohms
D. Watts
4: What is voltage?
A. The resistance encountered by electric charges in a circuit
B. The rate at which electric charges flow through a conductor
C. The potential difference between two points in an electric circuit
D. The energy stored in an electric field
5: What is the SI unit of voltage?
A. Volts
B. Amperes
C. Ohms
D. Watts
6: What is the relationship between current, voltage, and resistance in an electric circuit?
A. Current is directly proportional to voltage and inversely proportional to resistance
B. Voltage is directly proportional to current and inversely proportional to resistance
C. Resistance is directly proportional to voltage and inversely proportional to current
D. Current, voltage, and resistance are not related in an electric circuit
7: What is Ohm's Law?
A. The relationship between current and voltage in an electric circuit
B. The relationship between voltage and resistance in an electric circuit
C. The relationship between current and resistance in an electric circuit
D. The relationship between current, voltage, and resistance in an electric circuit
8: Which of the following materials is a good conductor of electricity?
A. Rubber
B. Plastic
C. Copper
D. Glass
9: Which of the following materials is a good insulator of electricity?
A. Aluminum
B. Silver
C. Wood
D. Rubber
10: What is the effect of increasing the voltage in an electric circuit?
A. It decreases the current flowing through the circuit
B. It increases the current flowing through the circuit
C. It has no effect on the current flowing through the circuit
D. It increases the resistance in the circuit
11: What is the effect of increasing the resistance in an electric circuit?
A. It decreases the current flowing through the circuit
B. It increases the current flowing through the circuit
C. It has no effect on the current flowing through the circuit
D. It decreases the voltage in the circuit
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Current and Voltage MCQs
