Voltage and Current Questions and Answers

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Showing 10 of 39 questions
Q1
If 60 J of energy are available for every 15 C of charge, what is the voltage?
  • A 4 V
  • B 60 V
  • C 15 V
  • D 0.25 V
Answer: Option A
Q2
An atom's atomic number is determined by the number of:
  • A neutrons minus protons
  • B protons
  • C electrons
  • D neutrons
Answer: Option B
Q3
A voltage will influence current only if the circuit is:
  • A open
  • B insulated
  • C high resistance
  • D closed
Answer: Option D
Q4
Which resistive component is designed to be temperature sensitive?
  • A Thermistor
  • B Rheostat
  • C Potentiometer
  • D Photoconductive cell
Answer: Option A
Q5
A voltmeter is used:
  • A to measure current
  • B in series with the circuit
  • C in parallel with the circuit
  • D to measure coulombs
Answer: Option C
Q6
If the current in a circuit equals 0 A, it is likely that the
  • A voltage is too high
  • B resistance is too low
  • C circuit has a short
  • D circuit is open
Answer: Option D
Q7
What are the unit and symbol for current?
  • A Ampere, A
  • B Coulomb, I
  • C Ampere, Q
  • D Ampere, I
Answer: Option D
Q8
Which part of an atom has no electrical charge?
  • A Electron
  • B Neutron
  • C Proton
  • D All of the above
Answer: Option B
Q9
Which voltage source converts chemical energy to electrical energy?
  • A Electrical generator
  • B Battery
  • C Solar cell
  • D Electronic power supply
Answer: Option B
Q10
An example of potential energy is:
  • A tea-kettle steam
  • B a moving vehicle
  • C the sun
  • D a battery
Answer: Option D

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