Recent content by vroomba03

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    What Happens to Primary Voltage if 8V is Applied to Secondary Coil?

    Homework Statement We have a transformer, the primary coil has 120V and secondary coil has 6V, if you put 8V in secondary coil, what will be the voltage in the primary coil. Homework Equations v1/v2 = n1/n2 where v is voltage and n is turns The Attempt at a Solution So i was...
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    Derivative of Cross Product with Differentiable Functions

    Thank you a bunch!
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    Derivative of Cross Product with Differentiable Functions

    Oops silly error. u'(f(t))(f'(t)) x v(g(t)) + u(f(t)) x v'(g(t)(g'(t)) correct?
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    Derivative of Cross Product with Differentiable Functions

    So the final equation for the question would be u'(f(t))(f'(t)) x v(g(t)) + u(f(t)) x v'(f(t)(f'(t)) ?
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    Derivative of Cross Product with Differentiable Functions

    Oh okay, so that is u'(f(t))(f'(t)) when using chain rule. So you said u'(f(t)) = d u(f(t))/f(t), so then would I divide what i got by the chain rule and divide it by f(t) and that would be my u'(f(t))?
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    Derivative of Cross Product with Differentiable Functions

    So then the equation would be U'(du(f(t))/f(t)) x V(g(t)) + U(g(t)) x V'(du(g(t))/g(t)) x U(f(t)) ?
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    Derivative of Cross Product with Differentiable Functions

    Homework Statement Assume that you are given differentiable function f(t) and g(t). Find a formula for the derivative of the cross product u(f(t)) x v(g(t)). Homework Equations d/dt(u(t) x v(t)) = (u'(t) x v(t) + u(t) x v'(t) The Attempt at a Solution So in this case I was thinking...