A current of $1\, A$ is drawn by a filament of an electric bulb. Number of electrons passing through a cross section of the filament in $16$ seconds would be roughly
A current of $1\, A$ is drawn by a filament of an electric bulb. Number of electrons passing through a cross section of the filament in $16$ seconds would be roughly
- A
$10^{23}$
- B
$10^{16}$
- C
$10^{18}$
- D
$10^{20}$
Similar Questions
What is the resistance of an electric arc lamp, if the lamp uses $20\, A$ when connected to $220$ volt line ?
What is the resistance of an electric arc lamp, if the lamp uses $20\, A$ when connected to $220$ volt line ?
Two conducting wires of same material, equal length and equal diameter are connected in series. How does the heat produced by the combination of resistance change ?
Two conducting wires of same material, equal length and equal diameter are connected in series. How does the heat produced by the combination of resistance change ?
$(a)$ What is meant by saying that the potential difference between two points is $1$ volt ?
$(b)$ Why does the connecting cord of an electrical heater not glow while the heating element does ?
$(c)$ Electrical resistivities of some substance at $20^{\circ} C$ are given below
Silver
$1.60 \times 10^{-8}\, \Omega m$
Copper
$1.62 \times 10^{8} \,\Omega$
Tungsten
$5.2 \times 10^{-8} \,\Omega m$
Iron
$10.0 \times 10^{8} \,\Omega m$
Mercury
$94.0 \times 10^{-8}\, \Omega m$
Nichrome
$100 \times 10^{-6}\, \Omega m$
Answer the following questions in relation to them
$(i)$ Among silver and copper which one is better conductor ? Why ?
$(ii)$ Which material would you advise to use in electrical heating device ? Why ?
$(a)$ What is meant by saying that the potential difference between two points is $1$ volt ?
$(b)$ Why does the connecting cord of an electrical heater not glow while the heating element does ?
$(c)$ Electrical resistivities of some substance at $20^{\circ} C$ are given below
| Silver | $1.60 \times 10^{-8}\, \Omega m$ |
| Copper | $1.62 \times 10^{8} \,\Omega$ |
| Tungsten | $5.2 \times 10^{-8} \,\Omega m$ |
| Iron | $10.0 \times 10^{8} \,\Omega m$ |
| Mercury | $94.0 \times 10^{-8}\, \Omega m$ |
| Nichrome | $100 \times 10^{-6}\, \Omega m$ |
Answer the following questions in relation to them
$(i)$ Among silver and copper which one is better conductor ? Why ?
$(ii)$ Which material would you advise to use in electrical heating device ? Why ?
What is a voltmeter ? How is it connected in a circuit ?
What is a voltmeter ? How is it connected in a circuit ?
In Volta's cell, what is the direction of the flow of electrons?
In Volta's cell, what is the direction of the flow of electrons?