Vector

If the vectors in the figure satisfy |u|=|v|=1 and u + v + w=0, what is |w|=?

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Electric charges

An attractive force of 1500N exist between a +900nC charge and another charge. The two charges are separated by 50mm. What is the...

4290

Electric charges

A force of 500N exist between two identical point charges separated by a distance of 40cm. Calculate the magnitude of the two point charges.

1,1360

Electric charges and forces

The force on two positive charges of magnitudes 5Âµc and 12Âµc is 100N. What is the distance between the two charges in cm?

890

Electric charges

Calculate the force between two point charges of 10Âµc and -20Âµc separated by a distance of 25cm.

140

General Physics-Electric charges

Two like charges of 8ÂµC are held a distance of 25m apart. What force of repulsion exists between them

60

General Physics-Electric charges

Consider a proton (mp=1.67x10-27 kg; qp=+1.60x10-19 C) and an electron (me=9.11x10-31 kg; qe=-1.60x10-19 C) separated by 5.29x10-11 m....

30

General Physics-Electric charges

How many electrons represent a charge of 70ÂµC?

2740

Transistor

9.In the circuit shown in the figure, the BJT has a current gain (Î²) of 50. For an emitter â€“ base voltage VEB = 600 mV, calculate the...

160

Boolean expressions

7. Prove the following Boolean expressions using the laws and theorems of Boolean algebra. i) (A+B) (A+B) = A ii) A(A+B) = AB iii) (A+B)...

60

Logic gates

Write down Boolean equation for the output Y of the given circuit and give its truth table

00

Transistor

8.A transistor of Î± = 0.99 and VBE = 0.7 V is connected in the common emitter configuration as shown in the figure. If the transistor is...

90

Transistors

7.Assuming VCEsat= 0.2 V and Î² = 50, find the minimum base current (IB) required to drive the transistor given in the figure to saturation.

40

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