मराठी

State the Commercial Unit of Electrical Energy. - Physics

Advertisements
Advertisements

प्रश्न

State the commercial unit of electrical energy.
एका वाक्यात उत्तर

उत्तर

Kilowatt-hour is the commercial unit of electricity.
 
shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Current Electricity - Exercise 4.2 ii [पृष्ठ १९९]

APPEARS IN

फ्रँक Physics - Part 2 [English] Class 10 ICSE
पाठ 4 Current Electricity
Exercise 4.2 ii | Q 24 | पृष्ठ १९९

संबंधित प्रश्‍न

Choose the correct alternative and rewrite the following sentence.

When the resistance of a conductor increases, the current will ________ increase.


What is the Flow of Charge Called?


What is the unit of electric current?


Which type of circuit, series or parallel, is preferred while connecting a large number of bulbs:  

(b) for lighting inside the rooms of the hotel?

 


Ten bulbs are connected in a series circuit to a power supply line. Ten identical bulbs are connected in a parallel circuit to an identical power supply line. 

(b) In which circuit, if one bulbs be brighter?


What will be the current drawn by an electric bulb of 40 W when it is connected to a source of 220 V?

What do you mean by direct current?

Electrical appliances have voltage and power ratings as listed below. Which
has the larger working resistance?

Appliances Voltage (V) Power (W)
(a) Washing machine 250 3000
( b) Television 240 160
(c)240 240 1500
( d) Hair curler 250 20
( e) Car head lamp 12 36

Tick (✓) the correct choice among the following :

There are 500 turns and 2000 turns in the primary and secondary coil of a
transformer respectively. If th e output voltage is 1000 V, how large is the
input voltage?


Answer the following question.
An electric lamp of resistance 20 Ω and a conductor of resistance 4 0 are connected to a 6 V battery as shown in the circuit. Calculate: 

(a) the total resistance of the circuit,  

(b) the current through the circuit, 

(c) the potential difference across the  (i) electric lamp and (ii) conductor, and

(d) power of the lamp.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×