Advertisements
Advertisements
Question
How is direction of current related to the direction of flow of electrons?
Advertisements
Solution
The direction of current is opposite to the direction of flow of electrons.
RELATED QUESTIONS
Which of the following units could be used to measure electric charge?
(a) ampere
(b) joule
(c) volt
(d) coulomb
Three 2 V cells are connected in series and used as a battery in a circuit.
How many joules of electrical energy does 1 C gain on passing through (i) one cell (ii) all three cells?
An electric circuit consisting of a 0.5 m long nichrome wire XY, an ammeter, a voltmeter, four cells of 1.5 V each and a plug key was set up.
Following graph was plotted between V and I values:
What would be the values of `V/I` rations when the potential difference is 0.8 V, 1.2 V and 1.6 V respectively?
What conclusion do you draw from these values?
What is the resistance of the wire?
The lamps in a house hold circuit are connected in parallel because:
(a) this way they required less current
(b) if one lamp fails the others remain lit
(c) this way they require less power
(d) if one lamp fails the other also fail
How does the heat H produced by a current passing through a fixed resistance wire depend on magnitude of current I?
Calculate the equivalent resistance between A and B in the adjacent diagram.
Complete the following sentence:
A fuse is a short piece of wire of high ......... and low
Find the effective resistance in the following circuit diagrams (Fig.):
