English
Maharashtra State BoardSSC (English Medium) 10th Standard

Nowadays MCBs are used in homes, for stop the current in the circuit which suddenly increases.

Advertisements
Advertisements

Question

Nowadays MCBs are used in homes, for stop the current in the circuit which suddenly increases.

Explain
Short/Brief Note
Advertisements

Solution

  1. Electrical appliances used in homes like geyser, heater, motor, oven, washing machine, etc. have high power consumption.
  2. If such appliances are connected simultaneously, a large amount of current flows in the circuit.
  3. This current may exceed permissible value and cause overloading.
    Hence, nowadays MCBs are used in homes, to stop the current in the circuit which suddenly increases due to overloading.
shaalaa.com
  Is there an error in this question or solution?
Chapter 4: Effects of electric current - Write scientific reasons

APPEARS IN

SCERT Maharashtra Science and Technology Part 1 [English] Standard 10 Maharashtra State Board
Chapter 4 Effects of electric current
Write scientific reasons | Q 4

RELATED QUESTIONS

Draw circuit symbols for variable resistance


Draw circuit symbols for  

an open switch


Draw circuit symbols for 

A closed switch


Tell the odd one out. Give proper explanation.


Who will spend more electrical energy? 500 W TV Set in 30 mins, or 600 W heater in 20 mins?


In an electric circuit, a battery and a bulb have been connected and the battery consists of two cells of equal potential difference. If the bulb is not glowing, then which tests will you perform in order to find out the reason for the bulb not glowing?


What do you understand by an electric circuit?

Distinguish between a closed circuit and an open circuit, with the use of suitable labelled diagrams. 


What do you understand by the open electric circuit?


Explain the following:
Closed circuit


In any electric circuit, when the switch is on and the current flows through it why do the wire, switches, bulb or devices become hot?


The unit of electrical power is _______.


Find the odd one out and give its explanation.


What is the potential difference?


Increasing the current passing through the wire decreases the magnetic field intensity.


Write scientific reason.

It is beneficial to carry electrical energy in AC form as it is carried over long distances.


What is the use of earthing wire?


______ is the device used to close or open an electric circuit.


In the given circuit diagram, which of the given switch(s) should be closed. So that only bulb A glows.


Three bulbs are connected end to end from the battery. This connection is called _______.


The wiring in a house consists of ______ circuits.


What is the role of the earth wire in domestic circuits?


______ is a kind of fish which is able to produce an electric current.


In a circuit, if the key is in open (off) condition, then electricity will not flow.


In an electrical circuit two resistors of 2 Ω and 4 Ω respectively are connected in series to a 6 V battery. The heat dissipated by the 4 Ω resistor in 5 s will be


When an electric current flows through a copper wire AB as shown in the following figure, the wire


Our body is a ______ of electricity.


In the above circuit, if the current reading in the ammeter A is 2A, what would be the value of R1


What are the essential components of an electric circuit?


In the following arrangement shown in the following figure, the bulb will not glow if the ends A and B are connected with


Will the bulb glow in the circuit shown in the following figure? Explain.


An electric motor rated 1100 W is connected to 220 V mains. Find: 

  1. The current drawn from the mains,
  2. Electric energy consumed if the motor is used for 5 hours daily for 6 days.
  3. Total cost of energy consumed if the rate of one unit is 5.

Assertion: People struck by lightning receive a severe electrical shock.

Reason: Lightning carries very high voltage.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×