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  1. N

    What is an E4?

    I understand that an E4 is the top band for an extension subject. But is it 40+/50 or 45+/50?
  2. N

    Ways of incresing current produced in a generator.

    Basically there is a question asking for threee ways in which more current could be produced. Is current directly proportionate to emf? So should i use the formula emf=nBLvsin(theta)? So is an acceptable answer: 1. Increse # of loops 2. Increse Magnetic field strength 3. turn the coil...
  3. N

    Ways of incresing current produced in a generator.

    Basically there is a question asking for threee ways in which more current could be produced. Is current directly proportionate to emf? So should i use the formula emf=nBLvsin(theta)? So is an acceptable answer: 1. Increse # of loops 2. Increse Magnetic field strength 3. turn the coil...
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