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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

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  

an open switch


What is a circuit diagram


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


Write the condition required for a circuit to be a closed circuit. 


What do you understand by the closed electric circuit


The unit of electrical power is _______.


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


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


Write scientific reason.

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


Flow of electricity through a closed circuit is _____.


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


In which among the following circuits does the bulb glow?


In the circuit diagram below, 10 units of electric charge move past point x every second What is the current in the circuit ______.


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?

Which of the following a simple circuit must-have?


_____ has a thin metallic filament that melts and breaks the connection when the circuit is overheated.


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


Explain about domestic electric circuits. (circuit diagram not required)


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.


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


In an electrical circuit three incandescent bulbs A, B and C of rating 40 W, 60 W and 100 W respectively are connected in parallel to an electric source. Which of the following is likely to happen regarding their brightness?


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


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


In an electric circuit, the current starts from ______.


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


Three bulbs A, B, and C are connected in a circuit as shown in Figure 14.2. When the switch is ‘ON’


Our body is a ________________ of electricity.


Observe the circuit given:

1. Would any of the bulbs glow when the switch is in the ‘OFF’ position?

2. What will be the order in which the bulbs A, B, and C will glow when the switch is moved to the ‘ON’ position?


The ______ is a species of fish that can give electric shocks of up to six hundred fifty watts of electricity.


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.


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


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

Reason: Lightning carries very high voltage.


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