(i)Calculate the current and resistance in the heater.(ii)The coil of heater is made from a wire of cross-sectional area2x10 m² and resistivity 1.1x10°2m. Calculate the length of thewire.(iii)The voltage of the power supply is then changed to 110 V. Calculate thenew power output of the heater.[7 marks 3(a)Calculate the number of electrons that flow in a wire if it carries a current of2 A for 5 s.(b)A 2.5 kW heater is connected to a 220 V power supply.

Answered: Image /qna-images/answer/1ed9487f-169b-4071-9f04-0724de3f329e.jpg

(i) Calculate the current and resistance in th (ii) The coil of heater is made from a wire o 2x10 m² and resistivity 1.1x10Qm wire. (iii) The voltage of the power supply is then new power output of the heater.

(i) Calculate the current and resistance in th (ii) The coil of heater is made from a wire o 2x10 m² and resistivity 1.1x10Qm wire. (iii) The voltage of the power supply is then new power output of the heater.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

100%

(i)
Calculate the current and resistance in the heater.
(ii)
The coil of heater is made from a wire of cross-sectional area
2x10 m² and resistivity 1.1x10°2m. Calculate the length of the
wire.
(iii)
The voltage of the power supply is then changed to 110 V. Calculate the
new power output of the heater.
[7 marks

3
(a)
Calculate the number of electrons that flow in a wire if it carries a current of
2 A for 5 s.
(b)
A 2.5 kW heater is connected to a 220 V power supply.

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