Electronics and Communication Engineering (ECE) Exam  >  Electronics and Communication Engineering (ECE) Questions  >  E4.5 shows a circuit for an ac voltmeter. It ... Start Learning for Free
E4.5 shows a circuit for an ac voltmeter. It utilizes a moving-coil meter that gives a full-scale reading when the average current flowing through it is 1mA. The moving-coil meter has a 100 Ohm resistance. Find the value of R that results in the meter indicating a full-scale reading when the input 60Hz sine-wave voltage magnitude is 120Vrms.?
Most Upvoted Answer
E4.5 shows a circuit for an ac voltmeter. It utilizes a moving-coil me...

Calculating the Value of R for the AC Voltmeter Circuit

To determine the value of resistor R that results in the meter indicating a full-scale reading when the input 60Hz sine-wave voltage magnitude is 120Vrms, we can use the following steps:

1. Calculate the Maximum Current:
- Since the moving-coil meter gives a full-scale reading at 1mA, we need to determine the maximum current that will flow through the meter.
- The maximum current can be calculated using Ohm's law: I = V/R, where V is the full-scale voltage (120Vrms) and R is the total resistance of the circuit.
- Substitute the given values to find the maximum current.

2. Calculate the Total Resistance:
- The total resistance in the circuit is the sum of the resistance of the moving-coil meter (100 Ohms) and the resistor R.
- Use the maximum current calculated in step 1 and the resistance of the moving-coil meter to determine the total resistance.

3. Determine the Value of Resistor R:
- Once the total resistance is known, subtract the resistance of the moving-coil meter to find the value of resistor R.
- This value of resistor R will ensure that the meter indicates a full-scale reading when the input voltage is 120Vrms at 60Hz.

By following these steps and calculating the value of resistor R accordingly, the AC voltmeter circuit can accurately display the desired full-scale reading for the given input voltage magnitude.
Attention Electronics and Communication Engineering (ECE) Students!
To make sure you are not studying endlessly, EduRev has designed Electronics and Communication Engineering (ECE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Electronics and Communication Engineering (ECE).
Explore Courses for Electronics and Communication Engineering (ECE) exam

Top Courses for Electronics and Communication Engineering (ECE)

E4.5 shows a circuit for an ac voltmeter. It utilizes a moving-coil meter that gives a full-scale reading when the average current flowing through it is 1mA. The moving-coil meter has a 100 Ohm resistance. Find the value of R that results in the meter indicating a full-scale reading when the input 60Hz sine-wave voltage magnitude is 120Vrms.?
Question Description
E4.5 shows a circuit for an ac voltmeter. It utilizes a moving-coil meter that gives a full-scale reading when the average current flowing through it is 1mA. The moving-coil meter has a 100 Ohm resistance. Find the value of R that results in the meter indicating a full-scale reading when the input 60Hz sine-wave voltage magnitude is 120Vrms.? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about E4.5 shows a circuit for an ac voltmeter. It utilizes a moving-coil meter that gives a full-scale reading when the average current flowing through it is 1mA. The moving-coil meter has a 100 Ohm resistance. Find the value of R that results in the meter indicating a full-scale reading when the input 60Hz sine-wave voltage magnitude is 120Vrms.? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for E4.5 shows a circuit for an ac voltmeter. It utilizes a moving-coil meter that gives a full-scale reading when the average current flowing through it is 1mA. The moving-coil meter has a 100 Ohm resistance. Find the value of R that results in the meter indicating a full-scale reading when the input 60Hz sine-wave voltage magnitude is 120Vrms.?.
Solutions for E4.5 shows a circuit for an ac voltmeter. It utilizes a moving-coil meter that gives a full-scale reading when the average current flowing through it is 1mA. The moving-coil meter has a 100 Ohm resistance. Find the value of R that results in the meter indicating a full-scale reading when the input 60Hz sine-wave voltage magnitude is 120Vrms.? in English & in Hindi are available as part of our courses for Electronics and Communication Engineering (ECE). Download more important topics, notes, lectures and mock test series for Electronics and Communication Engineering (ECE) Exam by signing up for free.
Here you can find the meaning of E4.5 shows a circuit for an ac voltmeter. It utilizes a moving-coil meter that gives a full-scale reading when the average current flowing through it is 1mA. The moving-coil meter has a 100 Ohm resistance. Find the value of R that results in the meter indicating a full-scale reading when the input 60Hz sine-wave voltage magnitude is 120Vrms.? defined & explained in the simplest way possible. Besides giving the explanation of E4.5 shows a circuit for an ac voltmeter. It utilizes a moving-coil meter that gives a full-scale reading when the average current flowing through it is 1mA. The moving-coil meter has a 100 Ohm resistance. Find the value of R that results in the meter indicating a full-scale reading when the input 60Hz sine-wave voltage magnitude is 120Vrms.?, a detailed solution for E4.5 shows a circuit for an ac voltmeter. It utilizes a moving-coil meter that gives a full-scale reading when the average current flowing through it is 1mA. The moving-coil meter has a 100 Ohm resistance. Find the value of R that results in the meter indicating a full-scale reading when the input 60Hz sine-wave voltage magnitude is 120Vrms.? has been provided alongside types of E4.5 shows a circuit for an ac voltmeter. It utilizes a moving-coil meter that gives a full-scale reading when the average current flowing through it is 1mA. The moving-coil meter has a 100 Ohm resistance. Find the value of R that results in the meter indicating a full-scale reading when the input 60Hz sine-wave voltage magnitude is 120Vrms.? theory, EduRev gives you an ample number of questions to practice E4.5 shows a circuit for an ac voltmeter. It utilizes a moving-coil meter that gives a full-scale reading when the average current flowing through it is 1mA. The moving-coil meter has a 100 Ohm resistance. Find the value of R that results in the meter indicating a full-scale reading when the input 60Hz sine-wave voltage magnitude is 120Vrms.? tests, examples and also practice Electronics and Communication Engineering (ECE) tests.
Explore Courses for Electronics and Communication Engineering (ECE) exam

Top Courses for Electronics and Communication Engineering (ECE)

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev