English
Maharashtra State BoardSSC (English Medium) 10th Standard

Write scientific reason. It is beneficial to carry electrical energy in AC form as it is carried over long distances. - Science and Technology 1

Advertisements
Advertisements

Question

Write scientific reason.

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

Explain
Short/Brief Note
Advertisements

Solution

  1. There is minimum power loss, when electrical energy is carried over long distances in the form of AC.
  2. Hence, it is beneficial to carry electrical energy in AC form as it is carried over long distances.
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 1 [English] 10 Standard SSC
Chapter 4 Effects of electric current
Write scientific reasons | Q 6

RELATED QUESTIONS

Draw a schematic diagram of a circuit consisting of a battery of three cells of 2 V each, a 5 Ω resistor, an 8 Ω resistor, and a 12 Ω resistor, and a plug key, all connected in series.


What do the following symbols mean in circuit diagrams? 


Draw circuit symbols for 

fixed resistance


Draw circuit symbols for variable resistance


Draw circuit symbols for  

 a battery of three cells 


What is a circuit diagram


Draw a circuit diagram to show how 3 bulbs can be lit from a battery so that 2 bulbs are controlled by the same switch the third bulb has its own switch. 

 


Find the odd one out and justify it.
Fuse wire, M.C.B., Rubber Gloves, Generator


Answer the following question.
With the help of a suitable circuit diagram prove that the reciprocal of the equivalent resistance of a group of resistances joined in parallel is equal to the sum of the reciprocals of the individual resistances. 


What do you understand by the closed electric circuit


Explain the following:
Open circuit


What is open 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?


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


What is the use of earthing wire?


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


Draw the circuit diagram for the series connection.


Rahul wants to make an electric circuit. He has a bulb, two wires, a safety pin, and a piece of copper. He does not have any electric cell or battery. Suddenly he gets some idea. He uses lemon instead of a battery and makes a circuit. Will the bulb glow?


In which among the following circuits does the bulb glow?


In the circuit shown, which switches (L,M or N) must be closed to light up the bulb?


In which of the following circuits are the bulb connected in series?


Draw the circuit diagram for the following series connection


Study the electric circuit below. Which of the following switches should be closed so that only two bulbs will light up


Fuse is


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

Reason: Lightning carries very high voltage.


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


A device that is used to break an electric circuit is called ______.


Assertion: In an open circuit, the current passes from one terminal of the electric cell to another.

Reason: Generally, the metal disc of a cell acts as a positive terminal.


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


A child has drawn the electric circuit to study Ohm’s law as shown in Figure. His teacher told that the circuit diagram needs correction. Study the circuit diagram and redraw it after making all corrections.


Boojho has a cell and a single piece of connecting wire. Without cutting the wire in two, will he be able to make the bulb glow? Explain with the help of a circuit diagram.


A complete circuit is left on for several minutes, causing the connecting copper wire to become hot. As the temperature of the wire increases, the electrical resistance of the wire


Set up the circuit shown in Figure again. Move the key to ‘ON’ position and watch carefully in which direction the compass needle gets deflected. Switch ‘OFF’ the current. Now keeping rest of the circuit intact, reverse the connections at the terminal of the cell. Again switch ‘on’ the current. Note the direction in which the needle gets deflected. Think of an explanation.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×