List of top Science Questions on Electric Circuit asked in CBSE Class X Board

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.