QCEVault

Electromagnetic induction — Question 24

Original QCE Vault practice · 1 mark

Q24 · Practice questionSimple familiar1 mark

QUESTION 24

An ideal transformer has 600600 primary turns and 150150 secondary turns. If the primary voltage is 240 V240\,\text{V}, the secondary voltage is
(A)
30 V30\,\text{V}
(B)
60 V60\,\text{V}
(C)
120 V120\,\text{V}
(D)
960 V960\,\text{V}
Question linkSyllabus coverage

Related questions

  1. Q21 · Original practice · 1 mark
    A uniform magnetic field of 0.50 T0.50\,\text{T} passes through a loop of area 0.030 m20.030\,\text{m}^2. The field is at 60∘60^\circ to the loop normal. What is the magnetic flux?
    Electromagnetic induction
  2. Q22 · Original practice · 1 mark
    The magnetic flux through each turn of a 120120-turn coil changes by 4.0×10−3 Wb4.0\times10^{-3}\,\text{Wb} in 0.080 s0.080\,\text{s}. What is the magnitude of the average induced EMF?
    Electromagnetic induction
  3. Q23 · Original practice · 1 mark
    The south pole of a bar magnet approaches the left face of a conducting coil, as shown. According to Lenz’s law, the left face of the coil initially behaves as
    Electromagnetic induction
  4. Q25 · Original practice · 1 mark
    An ideal transformer supplies 3.0 A3.0\,\text{A} at 24 V24\,\text{V} from a 240 V240\,\text{V} primary supply. What primary current is drawn?
    Electromagnetic induction