R P Goyal and S P Tripathi Solutions for Chapter: Electrical Power and Household Circuits, Exercise 1: EXERCISE-9(A)
R P Goyal Physics Solutions for Exercise - R P Goyal and S P Tripathi Solutions for Chapter: Electrical Power and Household Circuits, Exercise 1: EXERCISE-9(A)
Attempt the practice questions on Chapter 9: Electrical Power and Household Circuits, Exercise 1: EXERCISE-9(A) with hints and solutions to strengthen your understanding. Selina Icse Concise Physics For Class 10 solutions are prepared by Experienced Embibe Experts.
Questions from R P Goyal and S P Tripathi Solutions for Chapter: Electrical Power and Household Circuits, Exercise 1: EXERCISE-9(A) with Hints & Solutions
Distinguish between kilowatt and kilowatt-hour.
List the names of three electrical gadgets used in your house. Write their power, voltage rating and approximate time for which each one is used in a day. Hence find the electrical energy consumed by each in a day.
A battery of e.m.f. and internal resistance is connected to two resistors of resistances ohm and ohm joined in series. Find the electrical energy spent per minute in ohm resistor.
Water in an electric kettle connected to a supply takes minutes to reach its boiling point. How long will it take if the supply voltage falls to ?
An electric toaster draws current in a circuit with source of voltage . It is used for . Find the cost of operating the toaster if the cost of electrical energy is ₹ per .
An electric kettle is rated Find the cost of running the kettle for two hours at per unit.
A geyser is rated ''. This geyser is connected to mains. Calculate the current drawn.
A geyser is rated ''. This geyser is connected to mains. Calculate:
(i) The energy consumed in hours.
(ii) The cost of energy consumed at ₹ per .