Electricity Tes...

A toaster operating at $$240V$$ has a resistance of 120$$\Omega $$. The power is

What is the minimum resistance which can be made using five resistors each of $$\dfrac{1}{5} \Omega$$?

Inside a cell in a closed circuit the conventional electric current

Ashokbhai goes to an electric shop to buy an electric bulb to obtain light in a small room of his home. Which of the following statement is scientifically correct

Find the current flowing through the resistance $${ R }_{ 1 }$$ of the circuit shown in the figure if the resistances are equal to $${ R }_{ 1 }=10\Omega ,{ R }_{ 2 }=20\Omega $$ and $${ R }_{ 3 }=30\Omega $$ and the potential of points 1,2 and 3 are equal to $${ \varphi  }_{ 2 }=6V,and{ \varphi  }_{ 3 }$$ 5 V.

A uniform wire is cut into $$10$$ equal parts and all the equal parts are connected in parallel. The effective resistance

When three resistors of resistances $$  3 \Omega, 4 \Omega  $$ and 5 $$  \Omega  $$ are connected in parallel, the currents
through them are in the ratio

Inside a cell in a closed circuit the conventional electric current:

A lamp of $$  600 \mathrm{W}-240 \mathrm{V}  $$ is connected to 220 $$ \mathrm{V}  $$ mains. Its resistance is

Graphs between electric current and potential difference across two conductors A and B are shown in the figure. Which of the following conductor has more resistance?