A generator is constructed by rotating a coil of N turns in a magnetic field B a

Question

A generator is constructed by rotating a coil of N turns in a magnetic field B at a frequency f. The internal resistance of the coil is R and the cross sectional area of the coil is A. For each statement select T - True, F - False!

A) The maximum induced EMF occurs when the coil is rotated about an axis parallel to the magnetic field lines.
B) The maximum induced EMF doubles if the resistance R is doubled.
C) The maximum induced EMF doubles if the area A is doubled.
D) The maximum induced EMF doubles if the frequency f is doubled.
E) The maximum induced EMF doubles if the magnetic field B is doubled.
F) The maximum induced EMF occurs when the coil is rotated about an axis normal to the plane of the coil. A generator is constructed by rotating a coil of N turns in a magnetic field B at a frequency f. The internal resistance of the coil is R and the cross sectional area of the coil is A. For each statement select T - True, F - False!

A) The maximum induced EMF occurs when the coil is rotated about an axis parallel to the magnetic field lines.
B) The maximum induced EMF doubles if the resistance R is doubled.
C) The maximum induced EMF doubles if the area A is doubled.
D) The maximum induced EMF doubles if the frequency f is doubled.
E) The maximum induced EMF doubles if the magnetic field B is doubled.
F) The maximum induced EMF occurs when the coil is rotated about an axis normal to the plane of the coil.

Explanation / Answer

Maximum Induced EMF

Emax=2pi*f*N*B*A

a)

False

b)

False ,from above equation maximum induced emf Does not depend upon the Resistance

c)

True ,if Area is doubled ,then Maximum induced emf doubles from above equation

d)

True,,if frequency is doubled ,then Maximum induced emf doubles from above equation

e)

True ,,if magnetic field is doubled ,then Maximum induced emf doubles from above equation

f)

false

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.