YASH CLASSES
3. ELECTRIC CURRENT
26. When comb rubbed on hair
1020 electron
are move
on
comb find the
number of
charge on comb .
27. When
comb rubbed on
hair 1030 electron
are
move on comb
find the number
of
charge on comb .
28. When
comb rubbed on
hair 1025 electron
are
move on comb
find the number
of
charge on comb .
29. When
comb rubbed on
hair 1027 electron
are
move on comb
find the number
of
charge on comb .
30. show that one ampere
is
equivalent to flow
of
6.25 x 1018 elementary
charges .
31. An electric bulb draws
a current of 0.2 A
When the voltage is 220 volts . calculate the
amount of electric charge flowing it in
one hour .
32. An
electric bulb draws
a current of
1.8 A
When
the voltage is 440volts . calculate the
amount of electric charge flowing it in
one hour .
33. An electric bulb
draws a current
of 2.9 A
When
the voltage is 110 volts . calculate the
amount of electric charge flowing it in
one hour .