Advertisements
Advertisements
प्रश्न
Fill in the blank:
To increase the effective resistance in a circuit the resistors are connected in _____________.
उत्तर
To increase the effective resistance in a circuit, the resistors are connected in series
APPEARS IN
संबंधित प्रश्न
Calculate the number of electrons constituting one coulomb of charge.
The atoms of copper contain electrons and the atoms of rubber also contain electrons. Then why does copper conduct electricity but rubber does not conduct electricity?
Compare how an ammeter and a voltmeter are connected in a circuit.
What is an Ammeter? How is It Connected in a Circuit? Draw a Diagram to Illustrate Your Answer.
If the amount of electric charge passing through a conductor in 10 minutes is 300 C, the current flowing is:
(a) 30 A
(b) 0.3 A
(c) 0.5 A
(d) 5 A
The circuit diagram given below shows the combination of three resistors R1, R2 and R3:
Find :
(i) total resistance of the circuit.
(ii) total current flowing in the circuit.
(iii) the potential difference across R1.
Ten bulbs are connected in a series circuit to a power supply line. Ten identical bulbs are connected in a parallel circuit to an identical power supply line.
(d) Which circuit would have less current in it?
Two lamps, one rated 40 W at 220 V and the other 60 W at 220 V, are connected in parallel to the electric supply at 220 V.
(a) Draw a circuit diagram to show the connections.
(b) Calculate the current drawn from the electric supply.
(c) Calculate the total energy consumed by the two lamps together when they operate for one hour.
Find the effective resistance in the following circuit diagrams (Fig.):
Find the effective resistance in the following circuit diagrams (Fig.):
What is the purpose of fuse in an electrical circuit?
Choose the correct option from given alternative:
At the time of short circuit, the electric current in the circuit :
What determines the direction of flow of electrons between two charged conductors kept in contact?
State whether true or false. If false, correct the statement.
Current can produce magnetic field.
Which of the following represents voltage?
A current of 2A passing through the conductor produces 80 J of heat in 10 seconds. The resistance of the conductor is ______.
