हिंदी

A 200 V Electric Transfer Draws an Electric Current of 11 A. What is Its Electrical Resistance?

Advertisements
Advertisements

प्रश्न

A 200 v electric transfer draws an electric current of 11 A. What is its electrical resistance?
संख्यात्मक
Advertisements

उत्तर

AIC to Ohm's law;

V=IR

Here, V = 200 volt and I= 11 A

R = `"V"/"I" = 200/11 = 18.2 Omega`

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 4: Electricity and Magnetism - Exercise 4.2 ii [पृष्ठ १८८]

APPEARS IN

फ्रैंक Physics Part 2 [English] Class 10 ICSE
अध्याय 4 Electricity and Magnetism
Exercise 4.2 ii | Q 2 | पृष्ठ १८८

संबंधित प्रश्न

A car headlight bulb working on a 12 V car battery draws a current of 0.5 A. The resistance of the light bulb is:

(a) 0.5 Ω
(b) 6 Ω
(c) 12 Ω
(d) 24 Ω


V1, V2 and V3 are the p.ds. across the 1Ω, 2Ω and 3Ω resistors in the following diagram, and the current is 5 A.  

Which one of the columns (a) to (d) shows the correct values of V1, V2 and V3measured in volts? 

           `V_1`   `V_2`  `V_3` 

(a)         1.0       2.0        3.0                    

(b)         5.0       10.0      15.0

(c)         5.0       2.5        1.6                 

(d)         4.0       4.0        2.0 


Draw a circuit diagram to show how two 4 V electric lamps can be lit brightly from two 2 V cells.


If the current passing through a conductor is doubled, what will be the change in heat produced


What do you mean by a solenoid?

Tick(✓) the correct choice in the following:

When the length of a conductor is doubled the resistance of the conductor
will


60 joules of heat was dissipated in a resistor when 20 C flowed for 5 s. Calculate:
(a) P.d. across the resistor,
(b) Resistance of the resistor, and
(c) Average power dissipated in the resistor.


In a house there are 6 bulbs of 100 W each used for 4 hours a day, 4 bulbs of 60 W each used for 8 hours a day, an immersion heater of 2.5 kW used for 1 hour per day, and an electric iron of 800 W used for 2 hours per day. Calculate the cost of monthly electric bill for the month of April at the rate of 80 p per unit.


If the potential differences between two parts of a thundercloud is 10s V,
what is the amount of energy given up during the passage of 20 coulombs?

(a)2x10-7J

(b)200J

(c)Sx106 j

(d)2x 109J

(e)2x 1010 J


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?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×