Concept explainers
The battery connection that produces more light.
Answer to Problem 1OQ
Solution: b. Circuit 2 will produce more light.
Explanation of Solution
Given:
All the elements are identical in both the circuits.
Circuit diagram
Figure 1
Formula used:
Ohm’s law is given as
The power of the circuit is given as
Here,
Calculation:
In the circuit 1, the bulbs (resistance) are attached in series connection and the total resistance of series connection is given as:
Therefore, the current in the circuit is calculated as,
And the power (light) of the circuit 1 is calculated as:
In the circuit 2, the bulbs (resistance) are attached in parallel connection and the total resistance of parallel connection is given as:
Therefore, the current in the circuit is calculated as:
And the power (light) of the circuit 1 is calculated as:
From the Eq. (1) and Eq. (2), the circuit 2 will produce more light.
Conclusion:
Parallel circuit will produce more light, if there are same elements.
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Chapter 19 Solutions
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