Embibe Experts Solutions for Chapter: Electricity, Exercise 1: Uttarakhand Board-2018

Explain the principle and working of electric motor, by drawing its labelled diagram.

Two electric bulbs A and B are marked $60 \mathrm{W}, 220 \mathrm{V}$ and $100 \mathrm{W}, 220 \mathrm{V}$ respectively. Which one of the two has greater resistance?

Write the name of two devices based on heating effect of electric current.

A Refrigerator of $400 \mathrm{W}$ power is run for $8$ hours/day. What will be the cost of the energy to operate it for $30$ days? (Rate Rs. $3.00 \mathrm{per} \mathrm{kwh}$)

How much work is done in moving a charge of $5 \mathrm{C}$ across two points having a potential difference $15 \mathrm{V}?$

In the given circuit diagram, Calculate The total resistance of the circuit.

In the given circuit diagram, Calculate The total current flowing in the circuit.

Four resistors of $5 \mathrm{\Omega }$ each are connected in a circuit as shown below. Find the equivalent resistance $\left(R\right)$ of the circuit.