Name: Revisiting Ohm's Law & Resistivity
Uploaded: 2019-07-19
Duration: 4 min 5 s
Description: The entire domain of the science of electric current can be explained using Ohm’s law, that’s how powerful this discovery was. We will revise this once again.

Question

Draw any four symbols of the components used in electric circuit.

Accepted Answer

1) Electric cell

An electric cell is a device that converts chemical energy into electrical energy. All electric cells have two terminals, a positive terminal and a negative terminal. The following diagram represents the symbol of an electric cell.

2) Electric bulb:

An electric bulb is a device that glows and emits light when an electric current is passed through it. The filament is the part of the bulb that heats up and glows to give light when an electric current is passed through it. The following diagram represents the symbol of an electric bulb.

3) Voltmeter

The instrument used to measure voltage is called a voltmeter. The following diagram represents the symbol of a voltmeter.

The voltmeter is always connected in parallel across two points.

4) Ammeter

The instrument used to measure current is called an ammeter. The following diagram represents the symbol of an ammeter.

The ammeter is always connected in series in an electric circuit.

Draw any four symbols of the components used in electric circuit.

Important Questions on Electricity

Learn and Prepare for any exam you want !