Embibe Experts Solutions for Chapter: Electric Current, Exercise 1: Exercise

Author:Embibe Experts

Embibe Experts Physical Science Solutions for Exercise - Embibe Experts Solutions for Chapter: Electric Current, Exercise 1: Exercise

Attempt the practice questions on Chapter 9: Electric Current, Exercise 1: Exercise with hints and solutions to strengthen your understanding. Physical Science Crash Course (Based on Revised Syllabus-2023) solutions are prepared by Experienced Embibe Experts.

Questions from Embibe Experts Solutions for Chapter: Electric Current, Exercise 1: Exercise with Hints & Solutions

EASY
10th Andhra Pradesh Board
IMPORTANT

State Ohm's law. Suggest an experiment to verify it and explain the procedure.

MEDIUM
10th Andhra Pradesh Board
IMPORTANT

Ohm's law is valid only for metal conductors provided the temperature and other physical conditions remain constant. Why?

EASY
10th Andhra Pradesh Board
IMPORTANT

What are the limitations of Ohm's law?

MEDIUM
10th Andhra Pradesh Board
IMPORTANT

Why are the conductors of electric heating devices, such as toasters and electric irons, made of an alloy rather than a pure metal?

EASY
10th Andhra Pradesh Board
IMPORTANT

An electric heater draws a current of 5 A when connected to 220 V mains. Calculate the resistance of its filament.

MEDIUM
10th Andhra Pradesh Board
IMPORTANT

Define non-ohmic materials and give examples.

MEDIUM
10th Andhra Pradesh Board
IMPORTANT

Calculate the amount of electric current flowing through the body of a person who touches the live wire of 240 V with dry fingers. Assume that the resistance of the person's body is 100000 Ω.

EASY
10th Andhra Pradesh Board
IMPORTANT

Deduce the expression for equivalent resistance for three resistors connected in series.