60 watt bulb and 1500watt iron which device has more
resistance & why

Answers were Sorted based on User's Feedback



60 watt bulb and 1500watt iron which device has more resistance & why..

Answer / desingurajan ramco cements...

This is 100% correct answer.

60W Lamp is having more Resistance......
1500W Lamp is having Low Resistance......
B'coz 1500W lamp having low resistance mean, High Current
Flow through the Lamp(Tungsten Filament)....

if V=220Volts,


60w Lamp:
Power=VxI
I= Power/V
I= 60/220
I= 0.2727Amps

1500w Lamp:
Power=VxI
I= Power/V
I= 1500/220
I= 6.818Amps

So 1500w Lamp getting high Current

Now we find the Resistance of Each Lamp,

As Per Ohms Law, V = IR

60w Lamp
V = IR
R = V/I
R = 220/0.2727
R = 806.6667Ohms
Resistance of the 60w Lamp is 806.667Ohms

1500w Lamp
V = IR
R = V/I
R = 220/6.818
R = 32.2675Ohms
Resistance of the 1500w Lamp is 32.2675Ohms

Resistance of the 60w Lamp is 806.667Ohms
Resistance of the 1500w Lamp is 32.2675Ohms

Therefore 60w Lamp Get More Resistance than 1500w Lamp

Is This Answer Correct ?    41 Yes 2 No

60 watt bulb and 1500watt iron which device has more resistance & why..

Answer / desingurajan ramco cements...

Hello Frnds,

One more information,

This applicable for all Resistive Device.

Is This Answer Correct ?    11 Yes 0 No

60 watt bulb and 1500watt iron which device has more resistance & why..

Answer / deepak pandey

yes 60 watt lamp has more resistance than 1500 watt lamp
bcoz we know that
p = v.v/r
means if r is large then power will be less.
thats why in 60 watt bulb will have high resistance...

Is This Answer Correct ?    4 Yes 2 No

60 watt bulb and 1500watt iron which device has more resistance & why..

Answer / gopal

in ac case there is impidence not only resistance.think
about it.

Is This Answer Correct ?    3 Yes 4 No

60 watt bulb and 1500watt iron which device has more resistance & why..

Answer / shiva

power=v*I*cos(phi) in case of ac but in case of dc p=v*I. so the above answer is valid in the case of dc

Is This Answer Correct ?    0 Yes 1 No

Post New Answer

More Electrical Engineering Interview Questions

hw to calculate flc of motor ? data are:3-phase,50Hz,30kw

6 Answers   BRG, Reliance,


Write down the name of 2 lady Bir Pratin of Bangladesh

0 Answers  


APPLICATIONS OF SHUNT GENERATOR

1 Answers   Wipro,


What is SNMP Card Monitoring in UPS???

2 Answers   Emerson, MAA, SNMP,


Hi, what is the temp of bus bar.

1 Answers  






I had applied for JE in PSEB, Can you pls send me the Question bank for related to my field

0 Answers  


In 3 phase induction motor even with low Voltage it reaches nearly it's rated speed why? (for example instead of 400V it reaches with 250V)

2 Answers  


Why Ac Systems Are Preferred Over Dc Systems?

0 Answers   ABB,


does the transmission line model also requier active power in no-load operation?

1 Answers  


What are the basic elements used for modeling mechanical translational system?

0 Answers  


what is integrated ac contact circuit

0 Answers  


What is slip in an induction motor?

0 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)