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WorksheetsPRE-QUIZ TOPIC 1: INTRODUCTION TO ELECTRICAL CIRCUIT
Total questions: 15
Worksheet time: 8mins
What is the SI unit of electric current?
Ohm
Coulomb
Volt
Ampere
What does a primary cell do?
Used only once
Has a chemical reaction
Provides constant voltage
Can be recharged
What is the formula for calculating power in terms of voltage and current?
P = V/I
P = IR
P = VI
P = R/I
What happens to the total voltage in a series circuit?
It is zero
It is divided equally
It is the sum of individual voltages
It remains constant
What is the effect of increasing the temperature of a conductor on its resistance?
Decreases resistance
Increases resistance
No effect
Depends on the material
What is the equivalent resistance of two resistors in series?
R1 + R2
R1 * R2
R1 - R2
R1 / R2
What is the main advantage of connecting batteries in parallel?
Redundancy if one fails
Easier to recharge
Lower current draw
Higher voltage
What is the relationship between voltage, current, and resistance called?
Ampere's Law
Ohm's Law
Faraday's Law
Kirchhoff's Law
What is the purpose of a fuse in an electrical circuit?
Increase current
Protect against overload
Regulate voltage
Store energy
What is the formula for calculating the total current in a parallel circuit?
I = R/V
I = P/V
I = V/R
I = I1 + I2 + I3
What is the primary function of a resistor in a circuit?
Convert energy
Store energy
Control current
Increase voltage
What is the voltage drop across a 4 ohm resistor with a current of 3.5 A?
3.5 V
5 V
1.4 V
14 V
What is the effect of connecting batteries in series?
Higher voltage
Lower voltage
Higher current
No change
Draw the symbol of battery
Draw a circuit consisting of 3 resistors parallel with a voltage source.
