Advertisements
Advertisements
प्रश्न
How is direction of current related to the direction of flow of electrons?
Advertisements
उत्तर
The direction of current is opposite to the direction of flow of electrons.
संबंधित प्रश्न
Which particles constitute the electric current in a metallic conductor?
What is the unit of electric current?
A student made an electric circuit shown here to measure the current through two lamps.
Are the lamps in series or parallel?
(a) Are the lamps in series or parallel?
(b) The student has made a mistake in this circuit. What is the mistake?
(c) Draw a circuit diagram to show the correct way to connect the circuit. Use the proper circuit symbols in your diagram.
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.
(i) Draw a diagram of this electric circuit to study the relation between the potential difference maintained between the points 'X' and 'Y' and the electric current flowing through XY.
Consider the circuit given below when A, B and C are three identical light bulbs of constant resistance. 
(a) List the bulbs in order of increasing brightness.
(b) If C burns out, what will be the brightness of A now compared with before?
(c) If B burns out instead, what will be the brightness of A and C compared with before?
State two differences between the e.m.f and terminal voltage of a cell.
Find the effective resistance in the following circuit diagrams (Fig.):
Water : pipe :: Electric current : ______.
