Question 1 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19d3f273b230584979bcb.jpg' /> In the above diagram, $R_{1}$= 10 Ω, $R_{2}$= 40 Ω, $R_{3}$ = 30 Ω, $R_{4}$= 20 Ω,$R_{5}$ = 60 Ω, and a 12 V battery is connected to the arrangement. Calculate the the total current flowing in the circuit.

Question 2 :
A hot plate of an electric oven connected to a 220 V line has two resistance coils A and B, each of 24 Ω resistance, which may be used separately, in series, or in parallel. What is the current when the two coils are used in series?

Question 3 :
In series combination of resistors, the current is _____in every part of the circuit.

Question 4 :
How many 176 $\Omega$ resistors (in parallel) are required to carry 5 A on a 220 V line?

Question 5 :
An electric lamp of $100\Omega$, a toaster of resistance $50\Omega$, and a water filter of resistance $500\Omega$ are connected in parallel to a 220 V source. What is the resistance of an electric iron connected to the same source that takes as much current as all three appliances?