Expert Physics Tutoring

MS1:

- The rate at which magnetic field lines pass through a given area (1)

- Measured in Webers per square meter (Wb/m²) (1)

MS2:

- Alternating current induces a magnetic field in the primary coil (1)

- Changing magnetic field induces an alternating current in the secondary coil (1)

- Number of turns on each coil determines the voltage ratio (1)

MS3:

- Sets up correct equation: Vp/Np = Vs/Ns (1)

- Substitutes values correctly: 240/200 = Vs/50 (1)

- Rearranges and calculates: Vs = 60 V (1)

- Answer with unit: 60 V (1)

MS4:

- Reduces eddy currents (1)

- Made of thin, insulated iron plates (1)

MS5:

- Copper losses (due to resistance in windings) (1)

- Core losses (due to hysteresis and eddy currents) (1)

- Alternatively:

- Heat loss (due to resistance) (1)

- Sound loss (due to core vibrations) (1)

MS6:

- Sets up correct equation: Vp/Ip = Vs/Is (1)

- Substitutes values correctly: 230/1.5 = 12/Is (1)

- Rearranges and calculates: Is = 22.5 A (1)

- Answer with unit: 22.5 A (1)

MS7:

- Power transmission (1)

- Electrical appliances (e.g., laptop chargers, phone chargers) (1)

MS8:

- Increases voltage, reducing current (1)

- Reduces power loss due to heating in transmission lines (1)

- Allows for more efficient power transmission over longer distances (1)

MS9:

- Sets up correct equation: Vp/Np = Vs/Ns (1)

- Substitutes values correctly: 240/500 = Vs/100 (1)

- Rearranges and calculates: Vs = 48 V (1)

- Answer with unit: 48 V (1)

MS10:

- Reduced power loss due to heating (1)

- Conservation of energy (1)

- Lower greenhouse gas emissions (1)