Question 4 :
The graph between potential difference and current for a conductor is a straight line passing through the origin. Which law is illustrated by such a graph?
Question 6 :
Which is the expression for resistivity of a wire of length $l$ and cross-section area A?
Question 8 :
<span>The relation between potential difference (V) and current (I) was discovered by : </span>
Question 10 :
Who named the negatively charged particles present in cathode rays as electrons ?
Question 15 :
When 1 coulomb of charge flows through a conductor in 1 sec, then the current passing through the conductor is?
Question 22 :
<span>If doubling the voltage across a resistor doubles the current through the resistor then</span>
Question 25 :
Identify the statement which best describe transfer of electrical energy through a conductor.<br/>
Question 26 :
When $1$ coulomb of charge flows through a conductor in $1$sec, then the current passing through the conductor is
Question 31 :
Given a current carrying wire of non-uniform cross-section. Which one of the following is constant through out the length of wire ?
Question 33 :
The electric current flowing through a conductor is directly proportional to the ________ across the two ends of the conductor.<br/>
Question 35 :
The number of electrons in the outermost orbit of carbon atom is <br>
Question 37 :
The amount of charges that pass any section of the conductors in one second is called:
Question 43 :
A steady current flows in a metallic conductor of non-uniform cross-section. The quantity/quantities constant along the length of the conductor is /are
Question 44 :
In general, when the temperature of a conductor increases, its resistance
Question 47 :
<span>The practical unit of resistance is $\Omega$ and 1</span><span>$\Omega$</span><span>  is equal to : </span>
Question 48 :
In a metallic conductor, electric current is thought to be due to the movement of:
Question 50 :
When current flows through heater coil it glows but supply wiring does not glow because<br>