HomeworkLib
Question

A resistance R is connected to a battery and the current that flows is measured. When...

A resistance R is connected to a battery and the current that flows is measured. When R=25ohm the current is 4A and when R=35 ohm the current is 3A. Find emf of battery

science   physics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
A resistance R is connected to a battery and the current that flows is measured. When...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • A battery with an emf of 3.00 V has an internal resistance r. When connected to...

    A battery with an emf of 3.00 V has an internal resistance r. When connected to a resistor R, the terminal voltage is 2.90 V and the current is 0.16 A. 1. What is the value of the external resistor R? 2. What is the internal resistance r of the battery? 3. What is the energy dissipated in the battery's internal resistance in 1.6 minutes? 4. When a second identical battery is added in series and the external resistor is...

  • A battery with an emf of 12.00 V has an internal resistance r. When connected to...

    A battery with an emf of 12.00 V has an internal resistance r. When connected to a resistor R, the terminal voltage is 11.70 V and the current is 0.120 A. The value of the external resistor is 97.5 ohms and the value of the internal resistor is 2.50 ohms. What is the energy dissipated in the battery's internal resistance in 4.20 minutes?

  • Part 0 A battery with emf € and internal resistance r is first connected to a...

    Part 0 A battery with emf € and internal resistance r is first connected to a resistor of resistance R1 = R, where R is greater than r. This resistor is then disconnected from the battery and replaced with a resistor of resistance R2 = 2R. Find the ratio of the current with the second resistor to the current with the first resistor. Express your answer in terms of R and r. IVO AEO ? 12 11 Submit Request Answer...

  • When a battery voltage is measured by placing a high-resistance voltmeter across the terminals of the...

    When a battery voltage is measured by placing a high-resistance voltmeter across the terminals of the battery, the voltmeter reads 6.3V. With the voltmeter leads still attached, the battery terminals are then connected to a resistor in series with an ammeter. In this arrangement, the ammeter reads 150 mA, and the voltmeter reads 5.9V. What are the emf and the internal resistance of the battery?

  • A battery with an emf of 12.00 V has an internal resistance r.When connected to...

    A battery with an emf of 12.00 V has an internal resistance r. When connected to a resistor R, the terminal voltage is 11.70 V and the current is 0.20 A.A) What is the value of the external resistor R?B) What is the internal resistance r of the battery?C) What is the energy dissipated in the battery's internal resistance in 3.7 minutes?D) When a second identical battery is added in series and the external resistor is R = 28 Ohms...

  • Calculate the terminal voltage for a battery with an internal resistance of 0.750 Ohm and an...

    Calculate the terminal voltage for a battery with an internal resistance of 0.750 Ohm and an emf of 6.50 V when the battery is connected in series with a 78.0-Ohm resistor. Express your answer to three significant figures and include the appropriate units. V_ab = Calculate the terminal voltage for a battery with an internal resistance of 0.750 Ohm and an emf of 6.50 V when the battery is connected in series with an 780-Ohm resistor. Express your answer to...

  • A resistor with resistance R is connected to a battery that has emf 14.0 V and...

    A resistor with resistance R is connected to a battery that has emf 14.0 V and internal resistance r = 0.410 Ω. For what two values of R will the power dissipated in the resistor be 81.0W? (There is two answers)

  • A resistor R is connected across a battery of negligible internal resistance. If the resistance of...

    A resistor R is connected across a battery of negligible internal resistance. If the resistance of R is doubled, the current in R will be What?

  • Need help with physics problem. A battery with an internal resistance of r and an emf...

    Need help with physics problem. A battery with an internal resistance of r and an emf of 10.00 V is connected to a load resistor R = r. As the battery ages, the internal resistance triples. How much is the current trough the load resistor reduced? Explain.

  • 16) A resistor, R is connected in series with a non-ideal battery. When the battery is...

    16) A resistor, R is connected in series with a non-ideal battery. When the battery is not connected to a circuit, the voltage of the battery is Vopen. When connected to the resistor, the current in the circuit is 18. What is the internal resistance of the battery? I 16) R = 25 Vopen = 8.95 V.IR = 0.295 A A) 6.131 B) 0.990 C) 1.58 D) 5.34 n E) 3.070 F) 7.650 G) 1.830 H)2.58

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT