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| From: nikhilesh94 | Reply 41 of 310 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 40 |
changing the speed
Posted at: Sat Dec 26 13:42:48 2009 (GMT)
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| From: nikhilesh94 | Reply 42 of 310 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 42 |
north
Posted at: Sat Dec 26 13:43:10 2009 (GMT)
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| From: nikhilesh94 | Reply 43 of 310 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 43 |
3 ohms
Posted at: Sat Dec 26 13:43:43 2009 (GMT)
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| From: nikhilesh94 | Reply 44 of 310 | Reply | View replies (1)
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| Subject: Contributed Answer/Explanation to Q. 44 |
2 amperes
Posted at: Sat Dec 26 13:44:07 2009 (GMT)
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| From: nikhilesh94 | Reply 45 of 310 | Reply | View replies (1)
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| Subject: Contributed Answer/Explanation to Q. 44 |
2 amperes(I)
Posted at: Sat Dec 26 13:44:24 2009 (GMT)
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| From: nikhilesh94 | Reply 46 of 310 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 45 |
heat is proportional to the square of the current
this is in accordance to the heating effect of current proposed by joule.
=I2Rt
Posted at: Sat Dec 26 13:45:55 2009 (GMT)
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| From: nikhilesh94 | Reply 47 of 310 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 48 |
J/KOR C
Posted at: Sat Dec 26 13:46:28 2009 (GMT)
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| From: nikhilesh94 | Reply 48 of 310 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 49 |
HEAT CAPACITY =MASS *SP.HT CAPACITY
Posted at: Sat Dec 26 13:46:59 2009 (GMT)
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| From: ratchet | Reply 49 of 310 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 1 |
kg m/sec
Posted at: Sun Dec 27 16:33:59 2009 (GMT)
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| From: ratchet | Reply 50 of 310 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 2 |
newton
Posted at: Sun Dec 27 16:34:30 2009 (GMT)
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| From: ratchet | Reply 51 of 310 | Reply | View replies (1)
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| Subject: Contributed Answer/Explanation to Q. 14 |
The graph shows the resistance offered by the ohmic conductor
Posted at: Sun Dec 27 16:38:57 2009 (GMT)
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| From: ratchet | Reply 52 of 310 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 14 |
The graph shows the resistance offered by the ohmic resistor.
Posted at: Sun Dec 27 16:39:43 2009 (GMT)
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| From: ratchet | Reply 53 of 310 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 18 |
The similarity :-
Both use electromagnets
Posted at: Sun Dec 27 16:45:42 2009 (GMT)
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| From: ratchet | Reply 54 of 310 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 34 |
The condition necessary for an echo is that the distance between the person
producing the sound and the rigid obstacle is long enough to allow the
reflected sound to reach the person at least 0.1 second after the original
sound is heard.
Posted at: Sun Dec 27 16:55:44 2009 (GMT)
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| From: ratchet | Reply 55 of 310 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 38 |
The electromagnet is used in different electrical devices such as electric
bell and electric motor.
Posted at: Sun Dec 27 16:58:38 2009 (GMT)
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| From: ratchet | Reply 56 of 310 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 39 |
This happens because the frquency of the applied repeated periodic forced
vibrations becomes equal to the natural frequency of a one or more parts of
the vehicle. The name of the phenomenon is resonanace.
Posted at: Sun Dec 27 17:00:43 2009 (GMT)
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| From: ratchet | Reply 57 of 310 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 40 |
The rattling sound could be stopped by tightening the screw of the or fixing
the part of that is producing the sound
Posted at: Sun Dec 27 17:05:51 2009 (GMT)
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| From: ratchet | Reply 58 of 310 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 41 |
Because an electric field is produced around the wire due to the flow of
electric current through it.
Posted at: Sun Dec 27 17:22:04 2009 (GMT)
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| From: ratchet | Reply 59 of 310 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 46 |
A s the resistance increases heat in the conductor also increases.
Posted at: Sun Dec 27 17:24:35 2009 (GMT)
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| From: ratchet | Reply 60 of 310 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 48 |
The S.I unit of heat capacity is J/K or oC
Heat capacity of a body is the amount of heat energy required to raise its
temparature by 1oC or 1K.
Posted at: Sun Dec 27 17:29:13 2009 (GMT)
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