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

Categories >> Engineering >> Electrical Engineering
Suggest New Category

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

Question Posted / gopal_manda

5 Answers
10201 Views
RMSI, I also Faced
E-Mail Answers

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

why ht motors are connected in star?

1 Answers

is it possible to export & import power in a same transformer.how

2 Answers

Where do we adjust the setting of thermal over load relay & how cal calulate.

1 Answers Hilton,

What is the power plant or power station?

1 Answers

what is the speed of mixie?

5 Answers Keltron, TCS,

We are dealer in Maharashtra State & We have recd. form C from dealer of Maharashtra State against our E-1 form. Now assessing authority is asking for counterfoil of our E-1 form. But, our E-1 form counterfoil is misplaced somewhere & assessing authority is disallowing the C form which is recd. from Maharashtra State.Please let us know the option for allowing C form?

1 Answers

Vaccum circuit breaker

0 Answers

different between horse power and break horse power

2 Answers Allied Group,

what is dyn 11

3 Answers

can we measure +,-.zero sequence current ....? if so how can ???

2 Answers NLC,

1 hp single phase motor is more likely to get hot thsn inone hp 3 phase motor its true or false? If true why?

1 Answers TVS,

what maximum load will take a aluminum cable of 50mm 4 core.

3 Answers

For more Electrical Engineering Interview Questions Click Here