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In the multiple choices below, choose best answers. An ammeter can measure current in a given wire, thanks to its shunt resistor connect in: a) series with its galvanometer b) parallel with its galvanometer In transmission lines, a step-down transformer is used to: a) Reduce current in lines d) increase current in lines b) reduce voltage c) reduce power e) none of these A plastic object is rubbed against cotton and grabs positive charge, when similar object is rubbed against hair, it grabs negative charges. a) Hair is more electronegative than cotton; b) Hair is more electronegative than cotton. c) none of these

In the multiple choices below, choose best answers. An ammeter can measure current in a given wire, thanks to its shunt resistor connect in: a) series with its galvanometer b) parallel with its galvanometer In transmission lines, a step-down transformer is used to: a) Reduce current in lines d) increase current in lines b) reduce voltage c) reduce power e) none of these A plastic object is rubbed against cotton and grabs positive charge, when similar object is rubbed against hair, it grabs negative charges. a) Hair is more electronegative than cotton; b) Hair is more electronegative than cotton. c) none of these

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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Electrical Network Analysis 

3:59 In the multiple choices below, choose best answers. An ammeter can measure current in a given wire, thanks to its shunt resistor connect in: a) series with its galvanometer b) parallel with its galvanometer In transmission lines, a step-down transformer is used to: a) Reduce current in lines d) increase current in lines b) reduce voltage c) reduce power e) none of these A plastic object is rubbed against cotton and grabs positive charge, when similar object is rubbed against hair, it grabs negative charges. a) Hair is more electronegative than cotton; b) Hair is more electronegative than cotton. c) none of these Peak-to-peak value of voltage V = Vm sin wt in AC is meant by a) Vm, b) 2 Vm, c) √2V m d) e) no valid answer The resultant inductance of 2 equal coils is halved when the coils are in: a) Parallel, b) series, c) one of these The total electric flux out of any closed surface is proportional to the total electric charge inside the surface. This law is: a) Gauss's b) Biot-Savart's c) Maxwell's Kiss FM operates at 102.3MHz, as Radio waves travel at the speed of light, 3.00 × 108 m s, the wavelength of Kiss FM is: a) 306.9 m b) 0.341m c) 2.9 m d) none of these d) none of these Page 1 of 3 ||| The capacitance is the measure of a capacitor's ability to store: a) Voltage b) electrical charge c) Potential energy d) Power The resistivity of copper is 1.7×10-³m. A wire in copper has 3m length and the cross-sectional radius of 0.5 mm. Thus, its resistance is a) 6.5 x 10-14 c) 6.5 x 10² d) None of these b) 6.5 x 10-²0 A 20- electric iron at 220-V line is operated 3hours every day in a tailor's shop. In Rwanda the cost of energy is around 3.63kWh 1000Frw. which is the true statement among below? a) The tailor spends around 10,000Frw in 5 working days b) The tailor spends around 500Frw every working day 30 1
Transcribed Image Text:3:59 In the multiple choices below, choose best answers. An ammeter can measure current in a given wire, thanks to its shunt resistor connect in: a) series with its galvanometer b) parallel with its galvanometer In transmission lines, a step-down transformer is used to: a) Reduce current in lines d) increase current in lines b) reduce voltage c) reduce power e) none of these A plastic object is rubbed against cotton and grabs positive charge, when similar object is rubbed against hair, it grabs negative charges. a) Hair is more electronegative than cotton; b) Hair is more electronegative than cotton. c) none of these Peak-to-peak value of voltage V = Vm sin wt in AC is meant by a) Vm, b) 2 Vm, c) √2V m d) e) no valid answer The resultant inductance of 2 equal coils is halved when the coils are in: a) Parallel, b) series, c) one of these The total electric flux out of any closed surface is proportional to the total electric charge inside the surface. This law is: a) Gauss's b) Biot-Savart's c) Maxwell's Kiss FM operates at 102.3MHz, as Radio waves travel at the speed of light, 3.00 × 108 m s, the wavelength of Kiss FM is: a) 306.9 m b) 0.341m c) 2.9 m d) none of these d) none of these Page 1 of 3 ||| The capacitance is the measure of a capacitor's ability to store: a) Voltage b) electrical charge c) Potential energy d) Power The resistivity of copper is 1.7×10-³m. A wire in copper has 3m length and the cross-sectional radius of 0.5 mm. Thus, its resistance is a) 6.5 x 10-14 c) 6.5 x 10² d) None of these b) 6.5 x 10-²0 A 20- electric iron at 220-V line is operated 3hours every day in a tailor's shop. In Rwanda the cost of energy is around 3.63kWh 1000Frw. which is the true statement among below? a) The tailor spends around 10,000Frw in 5 working days b) The tailor spends around 500Frw every working day 30 1
3:57 The below figure shows two identical balls, each of mass 0.10 g, carry identical charges and are suspended by two threads of equal length. At equilibrium they position themselves as shown. Find the charge on either ball? FE dt mg VT = 100 V (~ A galvanometer of 1000 Q internal resistance is to be converted into a voltmeter. If its full-scale deflection would read 6V, while current of 1mA if flowing in it, what is the value of its multiplier resistor? 10 92 FT V₂ 60° Determine the frequency bandwidth of the resonant series RLC circuit in the diagram shown below 40 cm ||| Page 2 of 3 R I 20 Ω Xc 카 50° 1000 In the circuit shown in the figure below, 200 joules of thermal energy are 2 produced each second in the 4.0 9 resistor. Assuming the ammeter and two voltmeters to be ideal, what will be their readings? 4.0 92 ------- M 1592 M www XL 1000 10 Ω V₁ The differential equation of a tank circuit (or electrical oscillator) is written: L2+2=0, where L is an inductance and C is a capacitance A a) Draw a circuit diagram of that tank b) Write the general solution of this differential equation. c) What is the frequency formula of this circuit? d) How do we name such a frequency? 29
Transcribed Image Text:3:57 The below figure shows two identical balls, each of mass 0.10 g, carry identical charges and are suspended by two threads of equal length. At equilibrium they position themselves as shown. Find the charge on either ball? FE dt mg VT = 100 V (~ A galvanometer of 1000 Q internal resistance is to be converted into a voltmeter. If its full-scale deflection would read 6V, while current of 1mA if flowing in it, what is the value of its multiplier resistor? 10 92 FT V₂ 60° Determine the frequency bandwidth of the resonant series RLC circuit in the diagram shown below 40 cm ||| Page 2 of 3 R I 20 Ω Xc 카 50° 1000 In the circuit shown in the figure below, 200 joules of thermal energy are 2 produced each second in the 4.0 9 resistor. Assuming the ammeter and two voltmeters to be ideal, what will be their readings? 4.0 92 ------- M 1592 M www XL 1000 10 Ω V₁ The differential equation of a tank circuit (or electrical oscillator) is written: L2+2=0, where L is an inductance and C is a capacitance A a) Draw a circuit diagram of that tank b) Write the general solution of this differential equation. c) What is the frequency formula of this circuit? d) How do we name such a frequency? 29
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