Figure Q20 shows a DC Wheatstone bridge fed by supply voltage of 240V. The values of arm resistances connected in the bridge are R1 = 2000, R2 = 200 and R3 = 700. Then, the unknown value of R4 is calculated as, R. (Ve-Va) Figure Q20 O a. 17 ohms O b. 27 ohms O c7 ohms O d. 37 ohms

Figure Q20 shows a DC Wheatstone bridge fed by supply voltage of 240V. The values of arm resistances connected in the bridge are R1 = 2000, R2 = 200 and R3 = 700. Then, the unknown value of R4 is calculated as, R. (Ve-Va) Figure Q20 O a. 17 ohms O b. 27 ohms O c7 ohms O d. 37 ohms

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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The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.

Question

q20) please answer fast need it

Figure Q20 shows a DC Wheatstone bridge fed by supply voltage of 240V. The values of arm resistances connected in
the bridge are R1 = 2000, R2 = 200 and R3 = 700. Then, the unknown value of R4 is calculated as,
R.
Voe
(Ve-Vo)
Figure Q20
O a. 17 ohms
O b. 27 ohms
O C.7 ohms
O d. 37 ohms

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