Embibe Experts Solutions for Chapter: Electricity, Exercise 1: Goa Board-2019

Observe the correlation in the first pair and complete the second pair:
$1 \mathrm{volt}=\frac{1 \mathrm{Joule}}{1 \mathrm{Coulomb}}$:: $1 \mathrm{ohm}=$________

Observe the correlation in the first pair and complete the second pair:
Resistor or resistance :  :: Rheostat : __________

Electricity and magnetism are linked to each other.

Two fuse wires A and B of the same length but rated $20 \mathrm{A}$ and $10 \mathrm{A}$ respectively which will be more thicker and why?

Draw a circuit diagram for verifying Ohm's law. Connect a resistor, an ammeter, a plug key, a battery and a voltmeter across the resistor. Show the direction of the flow of current.

Select the most correct alternative given below each statement and write the completed statement:

An appliance like an electric iron takes a current from circuit rated _____

Select the most correct alternative given below each statement and write the completed statement:
An electric fuse is used to ________

Soham uses a $600 \mathrm{W}$ Music System for $5$ hours daily. Calculate the electrical energy consumed in $\mathrm{kWH}$ for $30$ days.

Draw a neat circuit diagram as described below :
Connect three Resistors $R1$, $R2$ and $R3$ in Parallel, connect them with a battery, ammeter and a plug key, insert a voltmeter across the resistors. Show the direction of the flow of current.