(a)
The current through the each resistor.
(a)
Answer to Problem 15PQ
The current through the each resistor is
Explanation of Solution
Refer to Fig 29.15; in this series circuit, current is same for entire closed loop.
Write the expression for the current in the circuit as.
Here,
Write the expression for equivalent resistance of three resistors connected in series as.
Here,
Conclusion:
Substitute
Substitute
Thus, the current passing through each resistor is
(b)
Find the voltage across each resistor
(b)
Answer to Problem 15PQ
The voltage across each resistor is
Explanation of Solution
Write the expression for voltage across each resistance when resistors connected in series as.
Here,
Conclusion:
Substitute
Substitute
Substitute
Thus, the voltage across each resistor is
(c)
Find the power is consumed by each resistor
(c)
Answer to Problem 15PQ
The power consumed by each resistor is
Explanation of Solution
Write the expression for power consumed by resistor as
Here,
Write the expression for the power consumed by Emf device as.
Here,
Conclusion:
Substitute
Substitute
Substitute
Substitute
Thus, the power consumed by each resistor is
(d)
the current , voltage drop and power through each resistor when
(d)
Answer to Problem 15PQ
The current through each resistor when
Explanation of Solution
Conclusion:
Substitute
Substitute
Thus, the current passing through each resistor is
Substitute
Substitute
Substitute
Substitute
Thus, the power consumed by each resistor is
Substitute
Substitute
Substitute
Thus, the voltage drop across
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Chapter 29 Solutions
EBK PHYSICS FOR SCIENTISTS AND ENGINEER
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