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Given that VS = 3V, VBE = 0.3V, IC = 9mA, and R1 = 1kΩ, calculate the base current of the transistor Q1 using KVL. Also find the current gain ( ) of the transistor Q1
1m^3 of copper has a massive of 8.9x10^3
54kg of copper contains 6.0x10^26
In copper, there is roughly one electron liberated from each copper atom.
a) Show that the electron number density "n" for copper is about 10^29m^-3
Two point charges , q_{1} = 33.8nC and q_{2} = 12.6nC are located on the x-at x = 0 and x=1.00 m. respectively . Where on the x-axis the electric field equal to zero?
Operation amplifiers are used in mostly all electronic circuits. State the difference between inverting and non-inverting operation amplifier. Draw the waveform for both the inputs and outputs of each of these amplifiers, and provide a label indicating if it is inverting or non-inverting
Three resistors of resistance 10Ω, 20Ω, and 15kΩ are connected in parallel across a 20V supply.
a) Determine the currents in each resistor and the total current from the supply
b) If the 20Ω resistor becomes disconnected, recalculate the current as in a). Using the results, discuss why parallel connections are commonly used in electrical connection inside the house.
c) With all three resistors connected, a fourth 5Ω resistor is connected in parallel to the other three resistors. Calculate the current through the four resistors and the total current from the supply
Operation amplifiers are used in mostly all electronic circuits. State the difference between inverting and non-inverting operation amplifier. Draw the waveform for both the inputs and outputs of each of these amplifiers, and provide a label indicating if it is inverting or non-inverting
A strain guage has a resistance of 120.2 ohms at 20oC. Calculate its resistance at 30oC.
