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Get Full Access to College Physics - 1 Edition - Chapter 21 - Problem 18cq
Get Full Access to College Physics - 1 Edition - Chapter 21 - Problem 18cq

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# Semitractor trucks use four large 12-V batteries. The

ISBN: 9781938168000 42

## Solution for problem 18CQ Chapter 21

College Physics | 1st Edition

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Problem 18CQ

Problem 18CQ

Semitractor trucks use four large 12-V batteries. The starter system requires 24 V, while normal operation of the truck’s other electrical components utilizes 12 V. How could the four batteries be connected to produce 24 V? To produce 12 V? Why is 24 V better than 12 V for starting the truck’s engine (a very heavy load)?

Step-by-Step Solution:
Step 1 of 3

Solution  18CQ

If battery are connected in series, the equivalent emf is equals the sum of emf of all the batteries. Therefore, two batteries of 12V rating should be connected in series, So that the demand of 24V could be met for the starter.

Also for the other electrical component of the trucks, two batteries of 12V rating should be connected in parallel to meet the requirement of 12V.

The loss of energy due to heat is proportional to the product of square of the current and the resistance. Keeping the other thing constant, the losses in 24V is half than 12V battery. This is the reason why 24V battery is preferred in case of heavily loaded truck.

Step 2 of 3

Step 3 of 3

##### ISBN: 9781938168000

The full step-by-step solution to problem: 18CQ from chapter: 21 was answered by , our top Physics solution expert on 07/07/17, 04:39PM. This textbook survival guide was created for the textbook: College Physics , edition: 1. College Physics was written by and is associated to the ISBN: 9781938168000. This full solution covers the following key subjects: batteries, TRUCK, produce, other, could. This expansive textbook survival guide covers 34 chapters, and 3125 solutions. The answer to “Semitractor trucks use four large 12-V batteries. The starter system requires 24 V, while normal operation of the truck’s other electrical components utilizes 12 V. How could the four batteries be connected to produce 24 V? To produce 12 V? Why is 24 V better than 12 V for starting the truck’s engine (a very heavy load)?” is broken down into a number of easy to follow steps, and 57 words. Since the solution to 18CQ from 21 chapter was answered, more than 466 students have viewed the full step-by-step answer.

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