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What is ohms law?

U=R*I

R=U*I

I=R*U

What is inductor voltage?

I*dL/dt

L*dI/dt

t*dI/dL

What is flux linkage?

Integral of voltage

Integral of voltage devided by turn number

Derivative of voltage multiplied by frequency

What does the acronym EMTP means?

Electric material test program

Electromotive transient performance

Electromagnetic transient program

What has the longest duration of the overvoltages?

Lightning

Switching

Temporary