Question 1

Plot
-f(t)=2tu(t)-6(t-2)u(t-2)+8(t-4) u(t-4)-12(t-7)u(t-7)+8(t-8) u(t-8)

Accepted Answer

The answer of  Plot
-f(t)=2tu(t)-6(t-2)u(t-2)+8(t-4) u(t-4)-12(t-7)u(t-7)+8(t-8) u(t-8) ...

Question 2

the power in the circuit element shown below and state whether the element is
absorbing power or releasing power.

Accepted Answer

p = - 0.27 W = - 270 mW

Question 3

Plot
-$$f ( t ) = 3 \operatorname { tri } \left( \frac { t - 2 } { 6 } \right)$$

Accepted Answer

The answer of  Plot
-\[f ( t ) = 3...

Question 4

the power instantaneous p(t) on the element when the current i(t) through the element
from positive terminal to negative terminal and voltage v(t) across the element are given by $$\mathrm { i } ( \mathrm { t } ) = 12 \cos \left( 2 \pi 50 \mathrm { t } + 50 ^ { \circ } \right) \mathrm { A } , \mathrm { v } ( \mathrm { t } ) = 210 \cos \left( 2 \pi 50 \mathrm { t } + 75 ^ { \circ } \right) \mathrm { V }$$

Accepted Answer

The answer of the power instantaneous p(t) on the element...

Question 5

Plot
- f(t)=4 σ (t+6)- 5 σ (t-4)

Accepted Answer

The answer of  Plot
- f(t)=4 σ (t+6)- 5 σ...

Question 6

charge entering an element is shown below. Plot the current through the element for 0 ≤ t
< 10s.

Accepted Answer

The answer of charge entering an element is shown below....

Question 7

Plot
-f(t) = -2u(t) + 6 u(t-2) - 9 u(t-5) + 5 u(t-8)

Accepted Answer

The answer of  Plot
-f(t) = -2u(t) + 6 u(t-2)...

Question 8

Plot
-v(t) = 3 + 8 cos(2π2000t + 135°) V

Accepted Answer

The answer of  Plot
-v(t) = 3 + 8 cos(2π2000t...

Question 9

Plot
-$$f ( t ) = - 3 \operatorname { rect } \left( \frac { t - 4 } { 6 } \right)$$

Accepted Answer

The answer of  Plot
-\[f ( t ) = -...

Question 10

the equation of the sinusoid shown below.

Accepted Answer

The answer of the equation of the sinusoid shown below....

Exam 1: Voltage, Current, Power, and Sources

Plot -f(t)=2tu(t)-6(t-2)u(t-2)+8(t-4) u(t-4)-12(t-7)u(t-7)+8(t-8) u(t-8)

the power in the circuit element shown below and state whether the element is absorbing power or releasing power.

Plot - $f ( t ) = 3 \operatorname { tri } \left( \frac { t - 2 } { 6 } \right)$

Plot - f(t)=4 σ (t+6)- 5 σ (t-4)

charge entering an element is shown below. Plot the current through the element for 0 ≤ t < 10s.

Plot -f(t) = -2u(t) + 6 u(t-2) - 9 u(t-5) + 5 u(t-8)

Plot -v(t) = 3 + 8 cos(2π2000t + 135°) V

Plot - $f ( t ) = - 3 \operatorname { rect } \left( \frac { t - 4 } { 6 } \right)$

the equation of the sinusoid shown below.

Exam 1: Voltage, Current, Power, and Sources

Plot -f(t)=2tu(t)-6(t-2)u(t-2)+8(t-4) u(t-4)-12(t-7)u(t-7)+8(t-8) u(t-8)

the power in the circuit element shown below and state whether the element is absorbing power or releasing power.

Plot - f(t)=3tri⁡(t−26)f ( t ) = 3 \operatorname { tri } \left( \frac { t - 2 } { 6 } \right)f(t)=3tri(6t−2​)

Plot - f(t)=4 σ (t+6)- 5 σ (t-4)

charge entering an element is shown below. Plot the current through the element for 0 ≤ t < 10s.

Plot -f(t) = -2u(t) + 6 u(t-2) - 9 u(t-5) + 5 u(t-8)

Plot -v(t) = 3 + 8 cos(2π2000t + 135°) V

Plot - f(t)=−3rect⁡(t−46)f ( t ) = - 3 \operatorname { rect } \left( \frac { t - 4 } { 6 } \right)f(t)=−3rect(6t−4​)

the equation of the sinusoid shown below.

Plot - $f ( t ) = 3 \operatorname { tri } \left( \frac { t - 2 } { 6 } \right)$

Plot - $f ( t ) = - 3 \operatorname { rect } \left( \frac { t - 4 } { 6 } \right)$