List of top Science Questions on Electric Circuit

Determine the equivalent resistance of the parallel combination of the two resistors (X and Y).

Study the circuit shown in which two resistors X and Y of resistances 3 Ω and 6 Ωrespectively are joined in series with a battery of 2V.

Find the current drawn from the battery by the series combination of the two resistors (X and Y). 

 Study the circuit shown in which two resistors X and Y of resistances 3 Ω and 6 Ω respectively are joined in series with a battery of 2V.

In which combination of resistors will the (i) potential difference across X and Y and (ii) current through X and Y, be the same

Study the circuit shown in which two resistors X and Y of resistances 3 Ω and 6 Ω
respectively are joined in series with a battery of 2V.

Draw a circuit diagram showing the above two resistors X and Y joined in parallel with same battery and same ammeter and voltmeter. 

What do the symbols given below represent in an electric circuit? Write one function of each. 

Assertion (A): In the common domestic circuit, the earth wire is connected to a metallic plate buried deep inside the earth. 
Reason (R): Earth wire ensures that any leakage of current to the metallic body of the appliance keeps its potential to that of the earth, so the user may not get a severe electric shock.