Given the figure: Use 4 decimal places when rounding off. a. Find the Reg if each resistor has a resistance of 78 ohms b. If a 420 V potential difference is connected across the combination, calculate the power absorbed by the farthest resistor (P). V

Given the figure: Use 4 decimal places when rounding off. a. Find the Reg if each resistor has a resistance of 78 ohms b. If a 420 V potential difference is connected across the combination, calculate the power absorbed by the farthest resistor (P). V

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter7: Parallel Circuits

Section: Chapter Questions

Problem 4PP: Using the rules for parallel circuits and Ohmslaw, solve for the missing values....

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Concept explainers

Types of Thyristors

With four layers of alternating P- and N- materials, a thyristor is a solid-state semiconductor device. It acts as a type of bi-stable switch and it conducts when the gate receives a current trigger and continues to conduct until the voltage is reverse biased across the device or by some means until the voltage is removed. The silicon-controlled rectifier is considered synonymous with thyristors by some sources. Thyristors are defined as more complex by other sources as it contains at least four-layer of alternating N-type and P-type substrate. They find large applications in the control of electrical power supplies, electric motor speed control, and ranging of light dimmers because thyristors can control large amounts of power supplies and voltage with a small device. The circuit symbol of the thyristor is given below.

Question

3. Given the figure: Use 4 decimal places when rounding off.
a. Find the Reg if each resistor has a resistance of 78 ohms
b. If a 420 V potential difference is connected across the combination, calculate the power
absorbed by the farthest resistor (P).
I'm
V

4. Find the equivalent resistance across a-b when
a. The switch is close
b. The switch is open
NOTE: Each resistor has a resistance equal to 780 ohms
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