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Worksheetsunit 1 BEE Elementary Concepts and DC Circuits
Total questions: 20
Worksheet time: 10mins
The unit of electrical resistance is:
Ampere
Volt
Ohm
Coulomb
What is the function of EMF in a circuit?
To increase resistance
To provide energy to move charges
To decrease voltage
To stop current flow
Current is defined as:
Flow of neutrons
Flow of electrons
Opposition to charge flow
Energy dissipation
The potential difference between two points is measured in:
Ohms
Amperes
Volts
Joules
Ohm’s law states that:
Voltage is proportional to current
Voltage is proportional to resistance
Resistance is proportional to current
Power is proportional to resistance
Electrical power is typically generated at:
Low voltage
Medium voltage
High voltage
Extra-high voltage
In a power system, the step-up transformer is used to:
Increase power
Increase voltage
Decrease in current
Both increase voltage and decrease current
The primary function of transmission lines is to:
Generate electricity
Distribute electricity to consumers
Transfer bulk power over long distances
Store electrical energy
The final stage in the electrical power system before it reaches consumers is:
Generation
Transmission
Distribution
Substation
Which type of current is commonly used in power transmission?
Direct Current (DC)
Alternating Current (AC)
Both DC and AC equally
Pulsating DC
A circuit where current flows in only one direction is called:
AC Circuit
DC Circuit
Both AC and DC Circuit
Parallel Circuit
Which transformation technique is used to convert a star network into an equivalent delta network?
Kirchhoff’s Law
Thevenin’s Theorem
Star-Delta Transformation
Norton’s Theorem
In a series circuit, the total resistance is:
The sum of all individual resistances
The reciprocal sum of individual resistances
Always less than the smallest resistance
Always equal to the largest resistance
Which of the following laws is fundamental for analyzing electrical circuits?
Newton’s Laws
Kirchhoff’s Laws
Faraday’s Laws
Ohm’s Laws
What happens to the total resistance in a parallel circuit when more resistors are added?
Increases
Decreases
Remains the same
Doubles
Kirchhoff’s Current Law (KCL) states that:
The total current entering a junction equals the total current leaving
The sum of voltages around a loop is zero
The total resistance in a series circuit is the sum of individual resistances
Voltage is proportional to current
Kirchhoff’s Voltage Law (KVL) states that:
The sum of all currents entering a node is zero
The sum of all voltage drops around a closed loop is zero
The power in a circuit is constant
The resistance in a circuit must be uniform
The superposition theorem is applicable to:
Non-linear circuits
Only DC circuits
Circuits with multiple independent sources
Only AC circuits
Loop analysis is based on which fundamental law?
Ohm’s Law
Kirchhoff’s Voltage Law (KVL)
Kirchhoff’s Current Law (KCL)
Thevenin’s Theorem
The total voltage in a closed-loop circuit, according to Kirchhoff’s Voltage Law (KVL), is:
The sum of all resistances
Zero
Equal to the sum of all currents
The reciprocal of the total resistance
