Quiz for:
Electricity - Voltage, Current, and Resistance - Ohm's Law - Physics
Question 10
What happens to the speed of electrons in a circuit if the current is doubled due to an increase in voltage?
A.Speeds up by half
B.Speeds up by double
C.Remains the same
D.Slows down
Question 1
What is the current in a circuit with a 12V battery connected across a 3 Ohm resistor according to Ohm's Law?
A.4 amps
B.8 amps
C.12 amps
D.6 amps
Question 2
If the voltage in the circuit is doubled to 24V with the same 3 Ohm resistor, what will be the current?
A.4 amps
B.8 amps
C.12 amps
D.6 amps
Question 3
What does the term 'current' in electricity refer to?
A.Quantity of charge
B.Rate of charge flow
C.Speed of electrons
D.Voltage over resistance
Question 4
How can the current in a circuit be doubled if the voltage is kept constant?
A.Doubling the number of electrons
B.Doubling the speed of electrons
C.Halving the resistance
D.Doubling the voltage
Question 5
What happens to the current if the resistance in a circuit is halved while keeping the voltage constant?
A.Current remains the same
B.Current doubles
C.Current halves
D.Current triples
Question 6
What is the relationship between current and voltage in a circuit with a constant resistance?
A.Current is proportional to voltage
B.Current is inversely proportional to voltage
C.Current is equal to the resistance
D.Current is independent of voltage
Question 7
If the current in a circuit is 4 amps, how many coulombs of charge flow per second?
A.4 coulombs
B.8 coulombs
C.12 coulombs
D.16 coulombs
Question 8
What does the 'I' in Ohm's Law (V = IR) represent?
A.Voltage
B.Current
C.Resistance
D.Power
Question 9
How does increasing the number of electrons in a circuit affect the current?
A.Increases current
B.Decreases current
C.No effect on current
D.Depends on the voltage
Question 10
What happens to the speed of electrons in a circuit if the current is doubled due to an increase in voltage?
A.Speeds up by half
B.Speeds up by double
C.Remains the same
D.Slows down
Question 1
What is the current in a circuit with a 12V battery connected across a 3 Ohm resistor according to Ohm's Law?
A.4 amps
B.8 amps
C.12 amps
D.6 amps