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How much is the potential difference between live and neutral wires? - Science and Technology 1

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प्रश्न

How much is the potential difference between live and neutral wires?

एक पंक्ति में उत्तर
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उत्तर

The potential difference between live and neutral wires is around 220 V.

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अध्याय 4: Effects of electric current - Answer in one sentence.

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एससीईआरटी महाराष्ट्र Science and Technology 1 [English] 10 Standard SSC
अध्याय 4 Effects of electric current
Answer in one sentence. | Q 5

संबंधित प्रश्न

Redraw the circuit of question 1, putting in an ammeter to measure the current through the resistors and a voltmeter to measure the potential difference across the 12 Ω resistors. What would be the readings in the ammeter and the voltmeter?


What do the following symbols mean in circuit diagrams? 


Draw circuit symbols for 

fixed resistance


Draw circuit symbols for variable resistance


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


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?


Draw a neat diagram showing a closed electric circuit.


Name the instrument used to control current in an electric circuit.


If you touch an electric wire carrying current you get a shock, but if on the same wire the birds sit they do not get any shock/current. Explain why?


______ 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.


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


Higher Order Question

A student made a circuit by using an electric cell, a switch, a torch bulb (fitted in the bulb holder), and copper connecting wires. When he turned on the switch, the torch bulb did not glow at all. The student checked the circuit and found that all the wire connections were tight.

  • What could be the possible reason for the torch bulb not glowing even when the circuit appears to be complete?

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


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

Reason: Lightning carries very high voltage.


State whether true or false. If false, correct the statement.

Ammeter is connected in parallel in any electric circuit.


When a circuit is open, _____ cannot pass through it.


Instead of metal wires, a jute string can be used to make a circuit.


The rate of flow of electric charges in a circuit is called ______.


In the following circuits (Figure), heat produced in the resistor or combination of resistors connected to a 12 V battery will be

(i) (ii) (iii) 

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.


Draw a circuit diagram of an electric circuit containing a cell, a key, an ammeter, a resistor of 2 Ω in series with a combination of two resistors (4 Ω each) in parallel and a voltmeter across the parallel combination. Will the potential difference across the 2 Ω resistor be the same as that across the parallel combination of 4 Ω resistors? Give reason.


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


Choose the statement which is not correct in the case of an electric fuse.


In an electric circuit a fuse is a ______ ______ to prevent possible fire.


Draw the symbols of the following circuit components.

Switch in off position


What are the essential components of an electric circuit?


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.


Write a short note on the different electrical circuits.


Name the device which is used to measure the strength of the electric current in an electric circuit.


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


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