Question 1 :
State true or false: When connected to the same source the current will flow more easily through a thick wire than thin wire.
Question 2 :
What is the equivalent resistance when $10^6\Omega$ and $1\Omega$ are connected in parallel?
Question 3 :
Which of the following terms does not represent electrical power in a circuit?
Question 4 :
A battery of 9 V is connected in series with resistors of 0.2 $\Omega$, 0.3 $\Omega$, 0.4 $\Omega$ , 0.5 $\Omega$ and 12 $\Omega$, respectively. How much current would flow through the 12 $\Omega$ resistor?
Question 5 :
A copper wire has diameter 0.5 mm and resistivity of $1.6 \times 10^{-8} \Omega m$. How much does the resistance change if the diameter is doubled?
Question 6 :
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 7 :
How is a voltmeter connected in the circuit to measure the potential difference between two points?
Question 8 :
What determines the rate at which energy is delivered by a current?
Question 9 :
What is the equivalent resistance when $10^6\Omega$ , $1\Omega$ and $10^3\Omega$ are connected in parallel?
Question 10 :
State true or false: When connected to the same source the current will flow more easily through a thick wire than thin wire.
Question 11 :
An electric motor takes 5 A from a 220 V line. What is the power of the motor?
Question 12 :
How much heat is generated while transferring 96000 coulomb of charge in one hour through a potential difference of 50 V?
Question 13 :
An electric bulb is rated 220 V and 100 W. When it is operated on 110 V, What will be the power consumed?
Question 14 :
How much power is used in 2$\Omega$ resistor when a 4 V battery is connected in parallel with 12$\Omega$ and 2$\Omega$ resistors?
Question 15 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19d73273b230584979c07.PNG' />
In the above image, Which among iron and mercury is a better conductor?
Question 16 :
An electric motor takes 5 A from a 220 V line. How much energy is consumed in 2 h.?
Question 17 :
Which uses more energy, a 250 W TV set in 1 hr, or a 1200 W toaster in 10 minutes?
Question 18 :
What is the lowest total resistance that can be secured by combinations of four coils of resistance 4 $\Omega$, 8 $\Omega$, 12 $\Omega$, 24 $\Omega$?
Question 19 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19d74273b230584979c08.PNG' />
In the above image, Which material is the best conductor?
Question 20 :
State true or false: Series arrangement is used for domestic circuits.