60 watt bulb and 1500watt iron which device has more
resistance & why
Answers were Sorted based on User's Feedback
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 |
Answer / desingurajan ramco cements...
Hello Frnds,
One more information,
This applicable for all Resistive Device.
| Is This Answer Correct ? | 11 Yes | 0 No |
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 |
Answer / gopal
in ac case there is impidence not only resistance.think
about it.
| Is This Answer Correct ? | 3 Yes | 4 No |
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 |
Sir, I need a power supply at 380V. The supply I get in three phase is rated 415V. The total supply I have from the supply company is 70KW. Kindly inform if it is better to use a voltage stabiliser for this purpose or a transformer
what is difference between tension tower and suspension tower?
what are protective device needed to power a 360W ,50hz,240v,single phase,0.65 pf universal motor
How to calculate voltage drop in copper and aluminium cable? I have laid 240Sq.mm Aluminium cable for the length of 600 Mtrs in 1 Mtrs underground. Normal load is 150A. Transformer is 630KVA, 6.KV/433V. But, I am getting only 395 Volts when load. How to calculate voltage drop and what is the permissible voltge drop for this circuit?
New istallation how many eathing have one transformer? Names of earthing connect places?
Why have the transformer one earthing to their neutral? Why have the transformer many earthing to their body?
The inventer is a battery, but if lost current at home u will turn on the fan but the is AC and inventer battery is dc . Then how the fan was rotating. What device Or machine in fan converst the Dc power to Ac power
hey guys i scored 910 on GRE and 67 on TOEFL respectively.I have an aggregate of about 74%in my B tech.For which colleges should i apply for an MS program in electrical engineering.I am looking for colleges in NJ,SC,NC,GEORGIA, NY. Please reply with a good response.....
Why water bubbles when D.C. Current is passed through it? Why not when A.C. Current is passed?
different aspects of voltage stability
in thermal power plant the steam produced is made to cool after falling on the turbine blades. my question is why this is done while the same is needed to heat up again. "jab pani ko wapis garam hi karna hai to thanda kyu karte hai"
Can neutral line also be use as a earthting for distribution transformer, or we need separate earthing pit forh the transformer?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)