Current
Trending Questions
- Proton
- Static
- Amber
- Current
The rate of flow of charges is known as
Electric potential
Electric conductance
Electric current
None of these.
What must be the current rating of the fuse for the safe use of an electric heater rated 1188 W, 120 V?
9.5 A
10 A
9.2 A
8.5 A
Current flow in the circuit is due to flow of protons.
True
False
In a dry cell , zinc container acts as ___________ terminal and carbon rod acts as___________ terminal.
Which of the following are not mobile charge carriers in a conductor?
Electrons
Protons
neutrons
None of the above
What is electric current? Write its SI unit.
Which of the following objects can produce an electric current in a circuit?
- Battery
Electric Bulb
Electric fan
Electric motor
Two resistors of resistor 2Ω and 5Ω are connected in series with a 7V battery. Find the potential difference across the 5Ω resistor.
7 V
1 V
5 V
2 V
The term electron was first suggested by George Stoney as a fundamental unit of electricity.
- True
- False
An electrical appliance is rated as 90 W - 225 V. How much current will flow through the appliance when in use?
0.5 A
0.4 A
0.6 A
0.7 A
You have been given the value of an electric charge q flowing through a conductor in time t seconds. Which relation below will you use to find out the amount of current I flowing through the conductor.
I=qt
I=q×t
I=It2
I=tq
Assuming the electric consumption per day to be 12 kWh and the rate of electricity to be Rs 6.25 per unit, find how much money is to be paid in a month of 30 days.
Electric current is the ________ of flow of electric _______.
Rate , charge
Current , voltage
Current, charge
Rate , voltage
The electronic current flows opposite to the conventional current.
True
False
If two heaters, each of power 1 kW are connected in parallel to a 250 V supply, their combined rate of heating will be
1 kW
2 kW
5 kW
250 kW
- 1 ampere
- 5 ampere
- 7 ampere
- 10 ampere
Electric current can flow through metals
- True
- False
An electrical appliance is rated as 60 W -150 V.
(a) What do you understand by this statement?
(b) How much current will flow through the appliance when in use?
- Electrons move from higher potential to lower potential.
- Electrons move from lower potential to higher potential.
- Protons move from lower potential to higher potential.
- Protons move from higher potential to lower potential.
The potential difference between two points is 35V and the resistance of the wire connecting the two points is 35Ω. The current in the circuit is
Primary cells can be recharged by passing an
magnetic
electrostatic
electric
resistive
- True
- False
- protons
- electrons
- neutrons
- atoms
Which of the following objects can produce an electric current in a circuit?
Electric fan
Electric motor
- Battery
Electric Bulb
- 26.19 cal.
- 130.95 cal.
- 7857 cal.
- 6493 cal.