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Get Full Access to Physics - 4 Edition - Chapter 21 - Problem 57
Get Full Access to Physics - 4 Edition - Chapter 21 - Problem 57

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# Four identical resistors are connected to a battery as ISBN: 9780321611116 152

## Solution for problem 57 Chapter 21

Physics | 4th Edition

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Problem 57

Four identical resistors are connected to a battery as shown in Figure 2134. When the switch is open, the current through the battery is . (a) When the switch is closed, will the current through the battery increase, decrease, or stay the same? Explain. (b) Calculate the current that ows through the battery when the switch is closed. Give your answer in terms of .

Step-by-Step Solution:

Q: Four identical resistors are connected to a battery as shown in Figure 21-34. When theswitch is open, the current through the battery is I0 .(a) When the switch is closed, will the current through the battery increase, decrease, or staythe same Explain.(b) Calculate the current that flows through the battery when the switch is closed. Give youranswer in terms of I0. Step-by-step solution Step 1 of 7The current through the battery I is cal0lated using the following formula: 0 = R eqHere, is the emf of the battery and R eq is the equivalent resistance.In order to find the resultant resistance, use the following rules:If the resistors R , R , R ,... are connected in series, the resultant resistance is as follows: 1 2 3 R = R1 R 2R 3..If the resistors R 1R2 R3,... are connected in parallel, the resultant resistance is as follows: R = 1 + 1 + 1 + ... -1 ( R1 R3 R 3 )

Step 2 of 7

Step 3 of 7

##### ISBN: 9780321611116

The full step-by-step solution to problem: 57 from chapter: 21 was answered by , our top Physics solution expert on 11/15/17, 04:23PM. The answer to “Four identical resistors are connected to a battery as shown in Figure 2134. When the switch is open, the current through the battery is . (a) When the switch is closed, will the current through the battery increase, decrease, or stay the same? Explain. (b) Calculate the current that ows through the battery when the switch is closed. Give your answer in terms of .” is broken down into a number of easy to follow steps, and 65 words. This full solution covers the following key subjects: Battery, switch, current, closed, give. This expansive textbook survival guide covers 32 chapters, and 3407 solutions. Since the solution to 57 from 21 chapter was answered, more than 1263 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Physics, edition: 4. Physics was written by and is associated to the ISBN: 9780321611116.

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