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Unit: Electricity

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Possible mastery points

Electric current & circuit

You may have heard of electric current. But what exactly is it? In this lesson, we will explore this and figure out how do we measure this?

Electric potential & potential difference

Voltage is a very common word in electricity. But in this lesson, we will learn exactly what it means and how to calculate it.

Practice

Quiz 1

Level up on the above skills and collect up to 200 Mastery points Circuits, Ohm's law & resistance

We saw what current & voltage are. Now let's explore the connection between them, which is famously called 'Ohm's law'

Factors on which resistance of a conductor depends on

What decides whether something is a good or a bad conductor of electricity? It's the resistivity of that material. So let's explore this concept of resistance and resistivity in detail.

Series and parallel resistors

How to solve circuits when we have more than 1 resistor in it? That's exactly what we will learn in this lesson.

Practice

Quiz 2

Level up on the above skills and collect up to 400 Mastery points Solving a circuit with series and parallel resistors

Sometimes we are challenged with mixed circuits, containing resistors both in series and parallel. Let's learn how to tackle such problems once and for all

Practice

Quiz 3

Level up on the above skills and collect up to 300 Mastery points Electric power and heating effect of current

We love electricity. But the same electricity heats up your phone when you are gaming. So let's explore why electricity heats up things, and how we can use it to our advantage.

Electric circuit with Bulbs

Circuits with electric bulbs seem tricky at first. But once we get the knack, it will be a breeze. So let's learn how to attack such circuits.

Practice

Quiz 4

Level up on the above skills and collect up to 300 Mastery points Commercial unit of electrical energy

We pay for electrical energy. But when you look at an electricity bill, you don't see the familiar unit Joules. You only see 'unit'. What is this 'unit'? And why do electric companies measure electricity in terms of these 'units'? The answers, in this lesson.

Prepare for CBSE board exam

This section starts with a video summarising the chapter, which is followed by an article covering CBSE board exam questions, arranged by subtopic.
Up next for you:

Unit test

Level up on all the skills in this unit and collect up to 1300 Mastery points! 