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2. A non-inductive resistor is connected in series with a capacitor of 100 µF capacitance across 200-V, 50-Hz mains. The p.d. measured across the resistor is 150 V. Find the value of resistance and the value of current taken from the mains if the resistor were connected in parallel-with the capacitor instead of in series. [R = 36.1 2 8.37 (City & Guilds, London)

2. A non-inductive resistor is connected in series with a capacitor of 100 µF capacitance across 200-V, 50-Hz mains. The p.d. measured across the resistor is 150 V. Find the value of resistance and the value of current taken from the mains if the resistor were connected in parallel-with the capacitor instead of in series. [R = 36.1 2 8.37 (City & Guilds, London)

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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diagram in explanation. 4.76 A lagging, 17°12' | (City & Guilds, London) 2. A non-inductive resistor is connected in series with a capacitor of 100 µF capacitance across 200-V, 50-Hz mains. The p.d. measured across the resistor is 150 V. Find the value of resistance and the value of current taken from the mains if the resistor were connected in parallel-with the capacitor instead of in series. [R = 36.1 2 8.37 Q (City & Guilds, London) 3. An impedance of (10 + j15) is connected in parallel with an impedance of (6 -j8)Q The total current is 15 A. Calculate the total power. 4. The load on a 250-V supply system is : 12 A at 0.8 power factor lagging ; 10 A at 0.5 power factor lagging ; 15 A at unity power factor ; 20 A at 0.6 power factor leading. Find (i) the total lead in kVA and (ii) its power factor. 5. A voltage having frequency of 50 Hz and expressed by V = 200 + j100 is applied to a circuit consist- ing of an impedance of 50 230° Qin parallel with a capacitance of 10 uF. Find (a) the reading on a [2036 W] (City & Guilds, London) [(i) 10.4 kVA (ii) 1.0] (City & Guilds, London)
Transcribed Image Text:diagram in explanation. 4.76 A lagging, 17°12' | (City & Guilds, London) 2. A non-inductive resistor is connected in series with a capacitor of 100 µF capacitance across 200-V, 50-Hz mains. The p.d. measured across the resistor is 150 V. Find the value of resistance and the value of current taken from the mains if the resistor were connected in parallel-with the capacitor instead of in series. [R = 36.1 2 8.37 Q (City & Guilds, London) 3. An impedance of (10 + j15) is connected in parallel with an impedance of (6 -j8)Q The total current is 15 A. Calculate the total power. 4. The load on a 250-V supply system is : 12 A at 0.8 power factor lagging ; 10 A at 0.5 power factor lagging ; 15 A at unity power factor ; 20 A at 0.6 power factor leading. Find (i) the total lead in kVA and (ii) its power factor. 5. A voltage having frequency of 50 Hz and expressed by V = 200 + j100 is applied to a circuit consist- ing of an impedance of 50 230° Qin parallel with a capacitance of 10 uF. Find (a) the reading on a [2036 W] (City & Guilds, London) [(i) 10.4 kVA (ii) 1.0] (City & Guilds, London)
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