What will be the equivalent resistance between points $A$ and $B$ of the following electric circuit?
What will be the equivalent resistance between points $A$ and $B$ of the following electric circuit?
- A
$1\, \Omega$
- B
$2\, \Omega$
- C
$5\, \Omega$
- D
$10 \,\Omega$
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Who invented simple battery?
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There are two electric bulbs, $(i)$ marked $60\, W$, $220\, V$ and $(ii)$ marked $100 \,W , 220 \,V .$ Which one of them has higher resistance ?
There are two electric bulbs, $(i)$ marked $60\, W$, $220\, V$ and $(ii)$ marked $100 \,W , 220 \,V .$ Which one of them has higher resistance ?
Unit of electric power may also be expressed as
Unit of electric power may also be expressed as
An electron in a metal is free to move anywhere but cannot leave the metal.
An electron in a metal is free to move anywhere but cannot leave the metal.
In a household, $5$ tube lights of $40\, W$ each are used for $5$ hours and an electric press of $500 \,W$ for $4$ hour everyday. Calculate the total energy consumed by the tube lights and press in a month of $30$ days.
In a household, $5$ tube lights of $40\, W$ each are used for $5$ hours and an electric press of $500 \,W$ for $4$ hour everyday. Calculate the total energy consumed by the tube lights and press in a month of $30$ days.