I need answers for this A transformer takes a current of 0.9 A and power absorbed 82 W, when its primary isconnected to a 240V, 50HZ supply under secondary is open circuited. No load power factorA1cos Ø is(а) 0.379(b) 0.74(с) 0.2(d) 0.9Two wattmeter's are used to measure the power in 3 phase balanced system and the bothmeters read equal. The power factor of the system isA2(а) 0.866(b) ∞(c) 0(d) 1Three loads, each of resistance 100 N are connected in a Delta to a 415 V, 3 - phase, 50 Hz, ACsupply. The total power taken by the load isАЗ(а) 2.396 kW(b) 5.16 kW(c) 7.18 kW(d) 1.72 kW

(i) When a transformer takes a current of 0.9 A and its primary is connected to a 82 V,When its…

A transformer takes a current of 0.9 A and power absorbed 82 W, when its prima connected to a 240V, 50HZ supply under secondary is open circuited. No load power cos Ø is (a) 0.379 (b) 0.74 (c) 0.2 (d) 0.9

A transformer takes a current of 0.9 A and power absorbed 82 W, when its prima connected to a 240V, 50HZ supply under secondary is open circuited. No load power cos Ø is (a) 0.379 (b) 0.74 (c) 0.2 (d) 0.9

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Question

I need answers for this

A transformer takes a current of 0.9 A and power absorbed 82 W, when its primary is
connected to a 240V, 50HZ supply under secondary is open circuited. No load power factor
A1
cos Ø is
(а) 0.379
(b) 0.74
(с) 0.2
(d) 0.9
Two wattmeter's are used to measure the power in 3 phase balanced system and the both
meters read equal. The power factor of the system is
A2
(а) 0.866
(b) ∞
(c) 0
(d) 1
Three loads, each of resistance 100 N are connected in a Delta to a 415 V, 3 - phase, 50 Hz, AC
supply. The total power taken by the load is
АЗ
(а) 2.396 kW
(b) 5.16 kW
(c) 7.18 kW
(d) 1.72 kW

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