Question

In measuring the current through a resistor, the ampermeter is placed in series with that particular...

In measuring the current through a resistor, the ampermeter is placed in series with that particular element. What would happen if we tried to measure the resistor current by placing the ampermeter in parallel with the resistor? Would that allow us to measure the current through the resistor?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Ammeter measures the current going through it. So, when we put ammeter in series to the resistor, we are able to measure the current through the resistor because same current passes through the resistor and the ammeter (as current is same for elements connected in series).

However, if we put ammeter in parallel to the resistor, the currents passing through the ammeter and resistors are different, in general. So, we would not be able to measure the current if ammeter is connected in parallel.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Why do you think it is essential to measure current in a series circuit instead of...
Why do you think it is essential to measure current in a series circuit instead of in a parallel circuit? What would happen if you simply connected the current probe to opposite sides of the resistor?
A voltmeter is a device placed in parallel with a circuit element to measure the voltage...
A voltmeter is a device placed in parallel with a circuit element to measure the voltage drop across the element. As it turns out, it is difficult (impossible?) to measure a voltage drop directly, so a voltmeter typically works by measuring a current and then converting to potential. At least before the days of digital circuitry, a voltmeter was basically an ammeter (which measures current) in series with a very large resistance R0. Suppose you use this kind of voltmeter...
When the DMM is used as a voltmeter, we use it to measure the voltage across...
When the DMM is used as a voltmeter, we use it to measure the voltage across a resistor by placing it in parallel with the resistor. What does that tell you about the resistance of the DMM when used a voltmeter? When the DMM is used as a ammeter, we use it to measure the current through a resistor by placing it in series with the resistor. What does that tell you about the resistance of the DMM when used...
For the circuit shown, a 10Ω resistor is now placed in series next to 50Ω resistor....
For the circuit shown, a 10Ω resistor is now placed in series next to 50Ω resistor. Draw a diagram of the new circuit. Calculate for your new circuit, the potential at a point midway between the 10Ω and 50Ω resistors. Calculate the current through the 20Ω resistor.   
Would the current of a resistor increase or decrease if an ammeter is used in series...
Would the current of a resistor increase or decrease if an ammeter is used in series with it to measure the current?
A parallel combination of an 4 resistor and an unknown resistor R is connected in series...
A parallel combination of an 4 resistor and an unknown resistor R is connected in series with a 19 resistor and a battery. This circuit is then disassembled and the three resistors are then connected in series with each other and the same battery. In both arrangements, the current through the 4 resistor is the same. What is the unknown resistance R?
Chapter 18, Problem 1 A 47- resistor and a 29- resistor are connected in series across...
Chapter 18, Problem 1 A 47- resistor and a 29- resistor are connected in series across a 24-V battery. What is the voltage across (a) the 47- resistor and (b) the 29- resistor? Chapter 18, Problem 2 The current in a 63- resistor is 0.077 A. This resistor is in series with a 42- resistor, and the series combination is connected across a battery. What is the battery voltage? Chapter 18, Problem 3 What resistance must be placed in parallel...
An 18 ohms resistor and a 6 ohms resistor are connected in series across an 18...
An 18 ohms resistor and a 6 ohms resistor are connected in series across an 18 V battery. Find the current through each resistor AND  the voltage drop across each resistor. Repeat for the situation of the resistors connected in parallel across the battery please show working out step by step
A 4 Ohm resistor is connected in series to a parallel connection of a 5 Ohm...
A 4 Ohm resistor is connected in series to a parallel connection of a 5 Ohm and a 10 Ohm resistor. The combination is connected to a 23 V battery. a) What is the current through the 5 Ohm resistor? b) What is the power lost in the 4 Ohm resistor? c) What is the potential difference across the 4 Ohm resistor?
In a particular circuit, the electromotive force is provided by four AA batteries connected in series....
In a particular circuit, the electromotive force is provided by four AA batteries connected in series. Next, the circuit has two branches connected in parallel. One branch has a 355 Ω resistor. The other branch has a 190 Ω resistor and a 340 Ω resistor connected in series with each other. Each battery provides an EMF of 1.5 V. a: Draw the circuit diagram. b: How much current flows through each of the three resistors? c: What is the voltage...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT