TEST PAPER 2026 FULL SOLUTION VERIFIED
◉ What is the name for the flow of electrons in an electric circuit?
Answer: Current
◉ Electrical current is measured in which of the following units?
Answer: Amperes
◉ Which of the following describes alternating current? Answer:
Current that alternates between positive and negative directions
◉ What describes the number of times per second that an
alternating current makes a
complete cycle? Answer: Frequency
◉ What is the unit of frequency? Answer: Hertz
◉ What are the units of electrical resistance? Answer: Ohms
◉ What type of current flow is opposed by resistance? Answer:
Direct current,Alternating current,RF current
,◉ Why are metals generally good conductors of electricity? Answer:
They have many free electrons
◉ Which of the following is a good electrical insulator? Answer:
Glass
◉ What formula is used to calculate voltage in a circuit? Answer: E =
IxR
◉ What formula is used to calculate resistance in a circuit? Answer:
R=E/I
◉ What formula is used to calculate current in a circuit? Answer: I =
E/R
◉ What is the resistance of a circuit in which a current of 3 amperes
flows when
connected to 90 volts? Answer: 30 ohms
◉ What is the resistance of a circuit for which the applied voltage is
12 volts and the
current flow is 1.5 amperes? Answer: 8 ohms
, ◉ What is the resistance of a circuit that draws 4 amperes from a
12-volt source? Answer: 3 ohms
◉ What is the current in a circuit with an applied voltage of 120
volts and a resistance of
80 ohms? Answer: 1.5 amperes
◉ What is the current through a 100-ohm resistor connected across
200 volts? Answer: 2 amperes
◉ What is the current through a 24-ohm resistor connected across
240 volts? Answer: 10 amperes
◉ What is the voltage across a 2-ohm resistor if a current of 0.5
amperes flows through
it? Answer: 1 volt
◉ What is the voltage across a 10-ohm resistor if a current of 1
ampere flows through it? Answer: 10 volts
◉ What is the voltage across a 10-ohm resistor if a current of 2
amperes flows through it? Answer: 20 volts