Question

- A certain waffle iron is rated at 1.22 kW when connected to a 120-V source....

- A certain waffle iron is rated at 1.22 kW when connected to a 120-V source.

(a) What current does the waffle iron carry?

(b) What is its resistance?

- A well-insulated electric water heater warms 111 kg of water from 20.0° C to 55.0° C in 35.0 min. Find the resistance of its heating element, which is connected across a 240-V potential difference.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

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
(a) A well-insulated electric water heater warms 121 kg of water from 20.0°C to 47.0°C in...
(a) A well-insulated electric water heater warms 121 kg of water from 20.0°C to 47.0°C in 27.0 min. Find the resistance (in Ω) of its heating element, which is connected across a 240 V potential difference.   Ω (b) What If? How much additional time (in min) would it take the heater to raise the temperature of the water from 47.0°C to 100°C?   min (c) What would be the total amount of time (in min) required to evaporate all of the...
14. A lightbulb is connected to a 120 V power source, forming a simple series circuit...
14. A lightbulb is connected to a 120 V power source, forming a simple series circuit with one load. The lightbulb has a resistance of 240 W and is left switched on for 6 hours. a) What is the current that flows through the lightbulb? How many electrons pass through the bulb in the 6 hour period?   What is the power dissipated in the lightbulb? If a power company charges 8 cents / kW×h for electricity, how much would it...
A 5-kW, 220-V shunt motor has an armature resistance of 0.15 ? and a field-circuit resistance...
A 5-kW, 220-V shunt motor has an armature resistance of 0.15 ? and a field-circuit resistance of 100 ?. The motor delivers rated output power at rated voltage when its armature current is 20 A. When the motor is operating at rated voltage, the speed is observed to be 1000 r/min when the machine is loaded such that the armature current is 15 A. In order to protect both the motor and the dc supply under starting conditions, an external...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT