Complete the table based on the amperage of the fuse wire. Electrical device Operating voltage ( V ) . Power of the device ( P ) . Current through the circuit, ( I ) . The amperage of the fuse to be used in the circuit ( A ) . Water heater 230 V 4370 W 19 A 20 A Air conditioner(AC) 230 V _____ 14 . 5 A _____ Television(LED-TV) 230 V 57 . 5 W _____ _____ Computer(Laptop) 230 V _____ 0 . 125 A _____

Amperage is the ratio of an equipment's power to the applied voltage. The amperage of the fuse to be used in the circuit should be a little more than the current through the circuit. Electrical device Operating voltage ( V ) . Power of the device ( P ) . Current through the circuit, ( I ) . The amperage of the fuse to be used in the circuit ( A ) . Water heater 230 V 4370 W 19 A 20 A Air conditioner(AC) 230 V 3335 W 14 . 5 A 15 A Television(LED-TV) 230 V 57 . 5 W 0 . 25 A 0 . 3 A Computer(Laptop) 230 V 28 . 75 W 0 . 125 A 0 . 2 A

E M B I B E

Physics Standard X Part 1>Chapter 1 - Effects of Electric Current>Exercise 5>Q i

EASY

10th Kerala Board

IMPORTANT

Earn 100

What is the unit of electric power?

50% studentsanswered this correctly

Important Questions on Effects of Electric Current

MEDIUM

10th Kerala Board

IMPORTANT

Physics Standard X Part 1>Chapter 1 - Effects of Electric Current>Exercise 6>Q i

A current of

0.4 A

flows through an electric bulb working at

230 V

. What is the power of the bulb in

W

?

MEDIUM

10th Kerala Board

IMPORTANT

Physics Standard X Part 1>Chapter 1 - Effects of Electric Current>Exercise 7>Q i

Nichrome is not used as filament in incandescent lamps. Why?

MEDIUM

10th Kerala Board

IMPORTANT

Physics Standard X Part 1>Chapter 1 - Effects of Electric Current>Exercise 8>Q i

What are the advantages of using discharge lamps instead of incandescent lamps?

MEDIUM

10th Kerala Board

IMPORTANT

Physics Standard X Part 1>Chapter 1 - Effects of Electric Current>Let us assess>Q 1

Fuse wire is to be used by understanding the amperage correctly. Write down the amperage of the fuse wires that are currently available in the market.

HARD

10th Kerala Board

IMPORTANT

Physics Standard X Part 1>Chapter 1 - Effects of Electric Current>Let us assess>Q 3

According to Joule’s Law the heat generated due to the flow of current is

H = I^{2} R t

. Will the heat developed increase on increasing the resistance without changing the voltage? Explain.

HARD

10th Kerala Board

IMPORTANT

Physics Standard X Part 1>Chapter 1 - Effects of Electric Current>Let us assess>Q 5

Complete the table based on the amperage of the fuse wire.

Electrical device	Operating voltage $(V)$ .	Power of the device $(P)$ .	Current through the circuit, $(I)$ .	The amperage of the fuse to be used in the circuit $(A)$ .
Water heater	$230 V$	$4370 W$	$19 A$	$20 A$
Air conditioner(AC)	$230 V$	_____	$14.5 A$	_____
Television(LED-TV)	$230 V$	$57.5 W$	_____	_____
Computer(Laptop)	$230 V$	_____	$0.125 A$	_____