Electricty and Circuits

Which of the following is the composition of a dry cell?
1. A carbon rod acts as a positive terminal and zinc acts as negative terminal.
2. A carbon rod acts as a negative terminal and zinc acts as positive terminal.
3. A filament acts as a positive terminal and an inert gas acts as a negative terminal.
4. A filament acts as a negative terminal and an inert gas acts as a positive terminal.
Which of the following shows the right way to connect two cells in parallel arrangement?
4. None of these
Which gas is filled in the inner portion of a bulb?
1. Fluorine gas
2. Oxygen gas
3. Argon gas
4. Nitrogen gas
In which of the following arrangements will the light bulb glow?
4. All of these
Which of the following is a good conductor of electricity?
1. Tap water
2. Salt solution
3. Metal wire
4. All of these
Which of the following is an insulator of electricity?
1. Bakelite
2. Aluminium
3. Tap water
4. All of these
Which test allows us to distinguish a material as a conductor or an insulator?
1. Visual Inspection
2. Conduction Test
3. Earthing Test
4. None of these
Would the bulb glow in the circuit?
1. Yes, because a woollen thread is a conductor.
2. No, because a woollen thread is a conductor.
3. Yes, because a woollen thread is an insulator.
4. No, because a woollen thread is an insulator.
Would the bulb glow in the circuit when a switch is replaced with an eraser?
1. Yes, because a woollen thread is a conductor.
2. No, because a woollen thread is a conductor.
3. Yes, because a woollen thread is an insulator.
4. No, because a woollen thread is an insulator.
Which gloves should an electrician use while repairing an electric switch?
1. Metal coated gloves
2. Rubber gloves
3. Wet gloves
4. Any gloves
When does a cell stop producing battery?
1. When it is fused
2. When the chemicals inside the cell are used up.
3. When it leaks
4. None of these
Is it advisable to join the wires with two terminals of the battery?
1. Yes, it charges the battery even more thus lengthening its life.
2. Yes, it enhances the properties of chemicals inside the battery.
3. No, in doing so the electric cell gets used up fast and the cell stops working.
4. No, in doing so the terminals of the battery get worn out.
Which of the following shows cell in series arrangement?
4. None of these
Which of the following statements is true?
1. Current can flow through metals.
2. Instead of a metal wire, a jute string can be used to make a circuit.
3. Electric current can pass through a sheet of thermocol.
4. All of these
Which of the following arrangements will use by the battery very quickly?
Which of the following can be used in replacement of a wire?
1. Aluminium foil
2. Rubber screwdriver
3. Wollen thread
4. All of these
Which of the following materials will light up the bulb during a conductor test?
1. Pin
2. Notebook
3. Chalk
4. Duster
Which of the following materials will light up the bulb during a conductor test?
1. Pen
2. Comb
3. Key
4. Rubber
What are the advantages of a dry cell?
1. They are light in weight and small in size.
2. They can be transported from one place to another easily.
3. There is not fear of spillage/leakage in a dry cell.
4. All of these
Which of the following could not be a reason for the not glowing of the bulb in a closed circuit?
1. A fused bulb
2. Incorrect arrangements of cells
3. An insulated switch
4. Thinner wires
Which of the following statements is false?
1. A bulb has two terminals.
2. An electric cell converts chemical energy into electrical energy.
3. Rubber and wood are good conductors of electricity.
4. None of these
Which of the following statements is false?
1. A switch is made of an insulator.
2. Current flows from the positive terminal of the cell to its negative terminal.
3. Current flows only through a complete path.
4. None of these
Which of the following statements is true?
1. Handles of electrical appliances are made up of insulators.
2. We can join the wires connected to two terminals of a cell.
3. Air is a good conductor of electricity.
4. None of these
To prevent an electric shock, the metallic electrical wires are covered with
1. Paper
2. Cotton
3. Aluminium
4. Plastic
How many terminals are there in a dry cell?
1. One
2. Two
3. Three
4. Four
Choose the incorrect statement.
1. A switch is the source of electric current in a cell.
2. A switch helps to complete or break the circuit.
3. A switch helps us to use electricity as per our requirement.
4. When the switch is open there is an air gap between its terminals.
In a electric bulb, light is produced due to glowing of
1. The glass case of the bulb
2. The thin filament
3. The thick wires supporting the filament.
4. Gases inside the glass case of the bulb.
Which of the following can not be used as a replacement for wires in a circuit?
1. Steel spoon
2. Metal clip
3. Plastic clip
4. Copper wire
Filament of a torch bulb is
1. A metal case.
2. Metak tip at the centre of the base.
3. Two thick wires.
4. A thin wire.
Which of the following tests positive for a conduction test?
1. Glass bangle
2. Thick thread
3. Rubber pipe
4. Steel spoon

Electricty and Circuits

Quiz