#1
What is the SI unit of electrical resistance?
#2
Which component is used to store electrical charge?
Resistor
Capacitor
Inductor
Transistor
#3
What does the term 'AC' stand for in electrical circuits?
Alternative Current
Alternating Current
Amplified Current
Alternating Charge
#4
In a series circuit with three resistors, how does increasing the resistance of one resistor affect the total resistance?
Increases
Decreases
Remains the same
Cannot be determined
#5
What is the formula for calculating power in an electrical circuit?
P = VI
P = V^2 / R
P = I^2 R
All of the above
#6
What is the relationship between current, voltage, and resistance in an electrical circuit?
V = IR
I = VR
R = VI
I = V/R
#7
What is the difference between DC and AC voltage?
DC voltage flows in one direction, while AC voltage changes direction periodically.
AC voltage flows in one direction, while DC voltage changes direction periodically.
DC voltage is measured in volts, while AC voltage is measured in watts.
AC voltage is measured in volts, while DC voltage is measured in watts.
#8
What is the formula for calculating resistance in a circuit?
R = V / I
R = P / I^2
R = V^2 / P
R = P / V^2
#9
What is the purpose of a diode in an electrical circuit?
To regulate voltage
To amplify current
To convert AC to DC
To store charge
#10
What is the function of a transistor in an electrical circuit?
To control current
To store charge
To convert AC to DC
To amplify or switch electronic signals
#11
What is the purpose of a fuse in an electrical circuit?
To control current
To amplify voltage
To protect against overcurrent
To convert AC to DC
#12
What is the difference between a series and parallel circuit?
Series circuit has only one path for current, while parallel circuit has multiple paths.
Series circuit has multiple paths for current, while parallel circuit has only one path.
Series circuit has higher resistance than parallel circuit.
Parallel circuit has higher resistance than series circuit.
#13
What is the purpose of a transformer in an electrical circuit?
To regulate voltage
To amplify current
To convert AC to DC
To change the voltage level
#14
What is the role of a ground wire in an electrical circuit?
To carry current to the load
To provide a path for current in case of a short circuit
To regulate voltage
To amplify current