Electricity and Circuits

Test will cover the chapter electricity and circuits

20 Questions Published

Questions

Question 1 Multiple Choice (Single Answer)

Which of the following correctly explains the electric current?

  1. It is an electromotive force expressed in volts.
  2. It is the flow of charges.
  3. It is the quantity of unbalanced electricity in a body.
  4. It is the flow of water.
  5. None of the above
Question 2 Multiple Choice (Single Answer)

What is the function of a switch?

  1. A switch places a limit on the amount of current that can be drawn by an electric current.
  2. A switch completes the ciruit.
  3. Break the circuit and complete the circuit.
  4. Neither breaks nor completes the circuit.
  5. It is a simple device, which we use to switch on or off electrical appliances.
Question 3 Multiple Choice (Single Answer)

What will you call that device which does not allow the electricity to pass through it?

  1. Conductor
  2. Insulator
  3. Semiconductor
  4. Transistor
  5. Capacitor
Question 4 Multiple Choice (Single Answer)

Two or more cells joined together are called ______.

  1. electric circuit
  2. open circuit
  3. closed circuit
  4. battery
  5. capacitor
Question 5 Multiple Choice (Single Answer)

Which metal is used to make the filament?

  1. Copper
  2. Silver
  3. Tungsten
  4. It depends upon the power of the bulb
  5. None of the above
Question 6 Multiple Choice (Single Answer)

What is open circuit?

  1. A complete electrical circuit in which current can flow.
  2. An incomplete electrical circuit through which current cannot flow.
  3. The circuit in which equal amount of current passes through all the components.
  4. The circuit in which different amounts of current flows through the different appliances of a circuit.
  5. None of the above
Question 7 Multiple Choice (Single Answer)

An electric cell has ____________ terminals

  1. 3
  2. 4
  3. 1
  4. 2
  5. None of the above
Question 8 Multiple Choice (Single Answer)

__________ is an insulator.

  1. Metal
  2. Acid
  3. Rubber
  4. Salt solution
  5. Silver
Question 9 Multiple Choice (Single Answer)

What is a semiconductor?

  1. It is a material, which allows electricity to pass through it completely.
  2. It is a material, which does not allow the current to pass through it.
  3. It is a device, which is used to store the charges.
  4. It is the material, which has the conductivity between some metals and insulator.
  5. It is the device, which converts the current from dc to ac.
Question 10 Multiple Choice (Single Answer)

Which wire protects us from having electric shocks?

  1. Earth wire
  2. Neutral wire
  3. Live wire
  4. No wire is safe
  5. All the above are safe
Question 11 Multiple Choice (Single Answer)

Which of the following non-metals is a conductor of electricity?

  1. Silicon
  2. Silver
  3. Krypton
  4. Graphite
  5. None of the above
Question 12 Multiple Choice (Single Answer)

Which of the following devices converts chemical energy into electrical energy?

  1. Electrical bell
  2. Electric kettle
  3. Electric cell
  4. Electric bulb
  5. Solar calculator
Question 13 Multiple Choice (Single Answer)

Kerosene oil is an example of ____________.

  1. conductors
  2. insulators
  3. electrolyte
  4. semiconductor
  5. none of the above
Question 14 Multiple Choice (Single Answer)

In which direction does the current flow?

  1. From positive terminal to negative terminal
  2. From negative terminal to positive terminal
  3. No fixed direction
  4. In the direction of flow of charge
  5. None of the above
Question 15 Multiple Choice (Single Answer)

An electric bulb lights up only when _______.

  1. circuit is open
  2. circuit is closed
  3. when connected to proper terminal
  4. when we switch on the plug
  5. None of these
Question 16 Multiple Choice (Single Answer)

What is the unit of current?

  1. Ampere
  2. Volt
  3. Watt
  4. Coulomb
  5. None of the above
Question 17 Multiple Choice (Single Answer)

What is a conductor ?

  1. It is the device, which does not allow the electricity to pass through it.
  2. It is the device, which allows the electricity to pass through it.
  3. It is the device, which has the conductivity between insulators and that of metals.
  4. It is the apparatus, which reduces or increases the voltage of alternative current.
  5. It is the device used to store electric charge.
Question 18 Multiple Choice (Single Answer)

______________ is the positive terminal of an electric cell.

  1. Metal cap
  2. Metal case
  3. Metal base
  4. Carbon rod
  5. None of the above
Question 19 Multiple Choice (Single Answer)

The tiny coiled metal wire present inside the bulb is called a/an __________.

  1. element
  2. conductor
  3. filament
  4. capacitor
  5. none of the above
Question 20 Multiple Choice (Single Answer)

When current flows in a circuit, then the particles that move are called

  1. electrons
  2. ions
  3. protons
  4. atoms
  5. none of the above