# Question: the voltage and current at the terminals of the circuit...

###### Question details

The voltage and current at the terminals of the circuit element
in (Figure 1) are zero for *t*<0. For *t*≥0 they
are

*v**i* = 75*e*^{−1600t} −
75*e*^{−400t} V

i = 5.0*e*^{−1600t} −
5.0*e*^{−400t} mA

where *t* is in seconds.

**Part A**

Find the power at *t* = 630 *μ*s.

Express your answer to three significant figures and include the appropriate units.

**Part** **B**

How much energy is delivered to the circuit element between 0
and 630 *μ*s?

Express your answer to three significant figures and include the appropriate units.

**Part C**

Find the total energy delivered to the element.

Express your answer to three significant figures and include the appropriate units.