If three bulbs $60\,W$, $100\,W$ and $200\,W$ are connected in parallel, then
A$200\, W$ bulb will glow more
B$60\, W$ bulb will glow more
C$100\, W$ bulb will glow more
D
All the bulbs will glow equally
Easy
Download our app for free and get started
A$200\, W$ bulb will glow more
a (a) In parallel ${P_{Consumed}} \propto {P_{Rated}}$
Download our app
and get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
A potentiometer wire of length $100\, cm$ has a resistance of $10\,\Omega $. It is connected in series with a resistance and a cell of $emf$ $2\, V$ and of negligible internal resistance. A source of $emf$ $10\,mV$ is balanced against a length of $40\, cm$ of the potentiometer wire. What is the value of external resistance ? .................. $\Omega$
In the circuit shown, a meter bridge is in its balanced state. The meter bridge wire has a resistance $0.1\, ohm/cm$. The value of unknown resistance $X$ and the current drawn from the battery of negligible resistance is
Water boils in an electric kettle in $20$ minutes after being switched on. Using the same main supply, the length of the heating element should be. . . . . . .to . . . . . .. times of its initial length if the water is to be boiled in $15$ minutes.
The current density in a cylindrical wire of radius $r=4.0 \,mm$ is $1.0 \times 10^{6} \,A / m ^{2}$. The current through the outer portion of the wire between radial distances $r / 2$ and $r$ is $x \pi A$; where $x$ is ..........
An electric bulb of $500 \,watt$ at $100\, volt$ is used in a circuit having a $200\, {V}$ supply. Calculate the resistance ${R}$ to be connected in series with the bulb so that the power delivered by the bulb is $500\, {W}$. (in $\Omega$)