4.Given the series circuit shown below, if R1, R2 and R3 are 10, 20and 25 ohms respectively, (a) find the equivalent resistance(ohms). (b) find the total current leaving the battery (Amps)R3. 3.The resistances of most substances increase when they areheated. A bulb for a flashlight using 3.0 V has a resistance of 2.0ohms when cold and 24 ohms when hot. Calculate the current(Amps) through the bulb when (a) cold and (b) hot. Claculate thepower consumed when (c) cold and (d) hot.3cPEHotF5

Solution 4 Given data :- R1 = 10 ohms R2 = 20 ohms R3 = 25 ohms emf of the given battery E = 9 V

Answered: Given the series circuit shown below,…

Given the series circuit shown below, if R1, R2 and R3 are 10, 20 and 25 ohms respectively, (a) find the equivalent resistance (ohms). (b) find the total current leaving the battery (Amps)

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 67PE: Integrated Concepts (a) An immersion heater utilizing 120 V can raise the temperature of a 1.00 102...

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Question

4.
Given the series circuit shown below, if R1, R2 and R3 are 10, 20
and 25 ohms respectively, (a) find the equivalent resistance
(ohms). (b) find the total current leaving the battery (Amps)
R3.

3.
The resistances of most substances increase when they are
heated. A bulb for a flashlight using 3.0 V has a resistance of 2.0
ohms when cold and 24 ohms when hot. Calculate the current
(Amps) through the bulb when (a) cold and (b) hot. Claculate the
power consumed when (c) cold and (d) hot.
3c
PE
Hot
F5

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