Find Vx in the network in Fig. P1.40 using Tellegens

If the current in an electric conductor is 2.4 A, how many coulombs of charge pass any point in a 30-second interval?

Determine the time interval required for a 12-A battery charger to deliver 4800 C.

A lightning bolt carrying 30,000 A lasts for 50 micro-seconds. If the lightning strikes an airplane flying at 20,000 feet, what is the charge deposited on the plane?

If a 12-V battery delivers 100 J in 5 s, find (a) the amount of charge delivered and (b) the current produced.

The current in a conductor is 1.5 A. How many coulombs of charge pass any point in a time interval of 1.5 minutes?

If 60 C of charge pass through an electric conductor in 30 seconds, determine the current in the conductor.

Determine the number of coulombs of charge produced by a 12-A battery charger in an hour

Five coulombs of charge pass through the element in Fig. P1.8 from point A to point B. If the energy absorbed by the element is 120 J, determine the voltage across the element. B A + V1 Figure P1.8

The current that enters an element is shown in Fig. P1.9. Find the charge that enters the element in the time interval 0 < t < 20 s. i(t) mA 0 t (s) 10 10 20 Figure P1.9

The charge entering the positive terminal of an element is q(t) = 30 e 4t mC. If the voltage across the element is 120 e 2t V, determine the energy delivered to the element in the time interval 0 < t < 50 ms.

The charge entering the positive terminal of an element is given by the expression q(t) = 12 e 2t mC. The power delivered to the element is p(t) = 2.4 e 3t W. Compute the current in the element, the voltage across the element, and the energy delivered to the element in the time interval 0 < t < 100 ms

The voltage across an element is 12 e 2t V. The current entering the positive terminal of the element is 2 e 2t A. Find the energy absorbed by the element in 1.5 s starting from t = 0.

The power absorbed by the BOX in Fig. P1.13 is 2 e 2t W. Calculate the amount of charge that enters the BOX between 0.1 and 0.4 seconds. 4et V + BOX Figure P1.13

The power absorbed by the BOX in Fig. P1.14 is 0.1 e 4t W. Calculate the energy absorbed by the BOX during this same time interval. 10e2t V + BOX Figure P1.14

The energy absorbed by the BOX in Fig. P1.15 is shown below. How much charge enters the BOX between 0 and 10 milliseconds? w(t) (mJ) t (ms) 5 10 15 10 15 5 1 2 3 4 5 6 7 8 9 10 Figure P1.15 15 V + BOX

The charge that enters the BOX in Fig. P1.16 is shown in the graph below. Calculate and sketch the current flowing into and the power absorbed by the BOX between 0 and 10 milliseconds. 12 V + BOX i (t) q(t) (mC) t (ms) 1 2 3 2 3 1 1 234 5 6 7 8 9 10 Figure P1.16

The energy absorbed by the BOX in Fig. P1.17 is given below. Calculate and sketch the current flowing into the BOX. Also calculate the charge which enters the BOX between 0 and 12 seconds. 10 V + BOX i (t) w(t) (J) t (s) 5 2.5 1 2345 678 9 10 11 12 Figure P1.17

The charge entering the upper terminal of the BOX in Fig. P1.18 is shown below. How much energy is absorbed by the BOX between 0 and 9 seconds? Figure P1.18 12 V + BOX

The energy absorbed by the BOX in Fig. P1.19 is shown in the graph below. Calculate and sketch the current flowing into the BOX between 0 and 10 milliseconds. 12 V + BOX i (t) w(t) (mJ) t (ms) 10 20 30 20 30 10 1 234 5 6 7 8 9 10 Figure P1.19

Determine the amount of power absorbed or supplied by the element in Fig. P1.20 if (a) V1 = 9 V and I = 2A (b) V1 = 9 V and I = 3A (c) V1 = 12 V and I = 2A (d) V1 = 12 V and I = 3A + V1 I Figure P1.20

Calculate the power absorbed by element A in Fig. P1.21. A15 V 3 A + Figure P1.21

Calculate the power supplied by element A in Fig. P1.22. A20 V 2 A + Figure P1.22

Element A in the diagram in Fig. P1.23 absorbs 30 W of power. Calculate V x. A 2 A Vx + Figure P1.23

Element B in the diagram in Fig. P1.24 supplies 60 W of power. Calculate I x. 24 V B Ix + Figure P1.24

Element B in the diagram in Fig. P1.25 supplies 72 W of power. Calculate VA . B 3 A VA + Figure P1.25

Element B in the diagram in Fig. P1.26 supplies 72 W of power. Calculate Ix. 18 V B Ix + Figure P1.26

(a) In Fig. P1.27 (a), P1 = 36 W. Is element 2 absorbing or supplying power, and how much?

(b) In Fig. P1.27 (b), P2 = 48 W. Is element 1 absorbing or supplying power, and how much? (a) (b) 12 V + 6 V + 6 V + 24 V + 1 2 1 2 Figure P1.27

Two elements are connected in series, as shown in Fig. P1.28. Element 1 supplies 24 W of power. Is element 2 absorbing or supplying power, and how much? 3 V + 6 V + 1 2 Figure P1.28

Element 2 in Fig. P1.29 absorbed 32 W. Find the power absorbed or supplied by elements 1 and 3. 8 V + 12 V + 2 4 V + 1 3 Figure P1.29

Choose Is such that the power absorbed by element 2 in Fig. P1.30 is 7 W. 4 V I 6 V s 2 V + + + 1 2 Figure P1.30

Find the power that is absorbed or supplied by the circuit elements in Fig. P1.31. 20 V 2 A 2 A 1 14 V + + 6 V 2 A + (a) 16 V 4 A 1 4 A + + 8 V + Ix = 4 A 2Ix (b) Figure P1.31

Find the power that is absorbed or supplied by the network elements in Fig. P1.32. (a) Ix = 2 A 2 A 2 A 2Ix 1 8 V 12 V + (b) Ix = 2 A 2 A 2 A 2 A 4Ix 2 12 V + 1 24 V 20 V + + + + + Figure P1.32

Compute the power that is absorbed or supplied by the elements in the network in Fig. P1.33. Ix = 4 A 36 V 2 A 2 A 1Ix 2 3 1 + 12 V + 28 V + 24 V + + Figure P1.33

Find the power that is absorbed or supplied by element 2 in Fig. P1.34. 1 4 V 12 V 2 A 2 A + 2Vx + 2 Vx + + Figure P1.34

Find Ix in the network in Fig. P1.35. 1 12 V 36 V 28 V Ix 2 A + 1Ix + 3 + + 2 A 2 24 V + Figure P1.35

Determine the power absorbed by element 1 in Fig. P1.36. 1 12 V 36 V 16 V Ix + 2 8 V + 2Ix 3 + + 2 A 24 V + Figure P1.36

Find the power absorbed or supplied by element 1 in Fig. P1.37. 1 6 V 18 V Ix Ix + 2 4 V + + 20 V 24 V + 2 A 2Ix + Figure P1.37

Find the power absorbed or supplied by element 3 in Fig. P1.38. 1 4 V + + + + 2 16 V 4 A 2 A 2 A 2 A 12 V 12 V + 3 Vx 2Vx + 4 20 V + 2 A Figure P1.38

Find the power absorbed or supplied by element 1 in Fig. P1.39. 1 4 V + 4Ix Ix + 3 20 V + 4 20 V + 12 V 2 8 V 4 A 4 A 2 A 12 V + + Figure P1.39

Find Vx in the network in Fig. P1.40 using Tellegens theorem. Vx + 1 2 3 + + 12 V 24 V 16 V 2 A 9 V 12 V + + + Figure P1.40

Find Ix in the circuit in Fig. P1.41 using Tellegens theorem. I I x x 2 A 18 V 12 V + 8 V + 4 V + 6 V 2 A 24 V 2 A + 12 V + + + Figure P1.41

Is the source Vs in the network in Fig. P1.42 absorbing or supplying power, and how much? 3 A 9 A 3 A VS + 8 V 6 A + 10 V 9 A 16 V + 6 V + + Figure P1.42

Find Io in the network in Fig. P1.43 using Tellegens theorem. Ix=2 A Io 4Ix + 4 5 2 + 6 3 1 6 V + 8 V 8 V + 16 V 24 V 3 A 3 A 6 A 4 A 1 A + 10 V + 6 V + + Figure P1.43

Calculate the power absorbed by each element in the circuit in Fig. P1.44. Also, verify that Tellegens theorem is satisfied by this circuit. 5 24 V + 12 V + 3Ix + 1 2 2 A 2 A 4 A 6 A 4 A 12 V 4 9 V 24 V + 6 V 3 15 V + + + 6 V + 4 A 2 A Ix = 2 A + Figure P1.44

Calculate the power absorbed by each element in the circuit in Fig. P1.45. Also, verify that Tellegens theorem is satisfied by this circuit. 5 30 V 40 V 1 5 V + 2 1 A 5 A + + 4 A 4 A 3 A 1 A 15 V 4 5 V + + 5 V + 10 V + 3 10 V + Figure P1.45

In the circuit in Fig. P1.46, element 1 absorbs 40 W, element 2 supplies 50 W, element 3 supplies 25 W, and element 4 absorbs 15 W. How much power is supplied by element 5? 3 4 5 1 2 Figure P1.46