Power Rating of a Resistor. The power rating of a resistor is the maximum power the resistor can .safely dissipate without too great a rise in temperature and hence damage to the resistor, (a) If the power rating of a 15-k Ω resistor is 5.0 W, what is the maximum allowable potential difference across the terminals of the resistor? (b) A 9.0-kΩ resistor is to be connected across a 120-V potential difference. What power rating is required? (c) A 100.0-Ω and a 150.0-Ω resistor, both rated at 2.00 W, are connected in series across a variable potential difference. What is the greatest this potential difference can be without overheating either resistor, and what is the rate of heat generated in each resistor under these conditions?
Power Rating of a Resistor. The power rating of a resistor is the maximum power the resistor can .safely dissipate without too great a rise in temperature and hence damage to the resistor, (a) If the power rating of a 15-k Ω resistor is 5.0 W, what is the maximum allowable potential difference across the terminals of the resistor? (b) A 9.0-kΩ resistor is to be connected across a 120-V potential difference. What power rating is required? (c) A 100.0-Ω and a 150.0-Ω resistor, both rated at 2.00 W, are connected in series across a variable potential difference. What is the greatest this potential difference can be without overheating either resistor, and what is the rate of heat generated in each resistor under these conditions?
Power Rating of a Resistor. The power rating of a resistor is the maximum power the resistor can .safely dissipate without too great a rise in temperature and hence damage to the resistor, (a) If the power rating of a 15-k Ω resistor is 5.0 W, what is the maximum allowable potential difference across the terminals of the resistor? (b) A 9.0-kΩ resistor is to be connected across a 120-V potential difference. What power rating is required? (c) A 100.0-Ω and a 150.0-Ω resistor, both rated at 2.00 W, are connected in series across a variable potential difference. What is the greatest this potential difference can be without overheating either resistor, and what is the rate of heat generated in each resistor under these conditions?
How long will it take a charged 80-uF capacitor to lose 30% of its initial energy when it is
allowed to discharge through a 45-2 resistor?
A PHY-102 connected a RC circuit
using a 3 MQ resistor, 1 µF
capacitor, and 4 V battery. The
rate at which the energy is being
stored (in 10-6 w) in the capacitor
at t = 1s is:
O 1.13
O 0.95
O 3.82
O 1.08
2.74
A 0.20-uF capacitor is to be charged through a resistor so that it becomes 63 percent charged in
0.10 s. What should the resistance of the capacitor be? (b) What is the time constant if the capacitor
is charged through a 20-MΩ resistor?
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DC Series circuits explained - The basics working principle; Author: The Engineering Mindset;https://www.youtube.com/watch?v=VV6tZ3Aqfuc;License: Standard YouTube License, CC-BY