Answer Posted / surender rawat
Ohm's law applies to electrical circuits; it states that
the current through a conductor between two points is
directly proportional to the potential difference (i.e.
voltage drop or voltage) across the two points, and
inversely proportional to the resistance between them.
The mathematical equation that describes this relationship
is: I = {V} / {R}\,
where I is the current in amperes, V is the potential
difference in volts,and R is a circuit parameter called the
resistance (measured in ohms, also equivalent to volts per
ampere).
It is clear that the Ohms law is applicable in case of
purely resistive loads (R) or linear loads. The transformer
constructed with windings on primary and secondary sides
are inductive in nature which are also non-linear. Hence
Ohms law is not applicable to transformers.
| Is This Answer Correct ? | 73 Yes | 27 No |
Post New Answer View All Answers
What is the effect of solar radiation on the design of an Isolated Phase Busduct?
some basic standard questions on transformer.
a battery is having capacity 100AH and 25% charging .if a load taking 10A & connected 6 hour .what is the final condition of the battery.
PLZ EXPLAIN THE INTERLOCKING AND CONTROLLING OF CONTACTORS????HOW CAN I DO THAT?
how to compute kAIC? with formulas...
What is the differance between 2 dc motors of armature voltage 660 v and 440 v?
how to set relay setting? and example calculation...
how rectifier transformer work in electroststic precipetatore(esp?
please send me RRB electrical engineer previous year questions for Sr. Section Engineer
what is accuracy ? in any meters , coils accuracy . how can u defined that ?
IF % IMPEDANCE OF A TRANSFORMER IS INCREASED FROM 5.8% TO 8% HOW MUCH THE EFFICIENCY OF THE TRANSFORMER WILL COME DOWN?
What is grid collapse? what is the reason for it?
what is W.T?specify the acceptable range?
I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?
What is the selection process of breakers. Can any one please give a formulation on same?