Question 1 :
How many 176 $\Omega$ resistors (in parallel) are required to carry 5 A on a 220 V line?

Question 2 :
An electric iron of resistance 20 ohm takes a current 5 A. Calculate the heat developed in 30 s.

Question 3 :
A hot plate of an electric oven connected to a 220 V line has two resistance coils A and B, each of 24 $\Omega$ resistance. What is the current when they are used separately?

Question 5 :
An electric iron consumes energy at a rate of 840 W when heating is at the maximum rate and the voltage is 220 V. What is the resistance when heating is at maximum rate?

Question 6 :
How much current will an electric heater coil draw from a 220 V source, if the resistance of the heater coil is 100 Ω?

Question 7 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19cd7273b230584979b52.JPG ' /> In the above electric circuit, find out the effective resistance of two $8\Omega$ resistors in the combination

Question 8 :
How much power is used in 2$\Omega$ resistor when a 6 V battery is connected in series with 1$\Omega$ and 2$\Omega$ resistors?

Question 9 :
Which of the following terms does not represent electrical power in a circuit?

Question 10 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19d3d273b230584979bc9.jpg' /> In the above diagram, the resistors $R_{1},R_{2},R_{3}$ have the values 5 Ω, 10 Ω, 30 Ω, respectively, which have been connected to a battery of 12 V. Calculate the total circuit resistance.