Test the significance at 0.05 level of the computed values of correlation r= 0.65 with a sample size of 10
A supplier sells ropes. He claims that the ropes have a mean strength of 34 pounds and a variance of 64 pounds. A random sample of 32 ropes selected from a shipment yields a mean strength of 31 pounds. Could the claim of the supplier be rejected at 0.05 level?
The theoretical limit coefficient of variation (Vr in %) of the weight per unit length of cotton sliver is šš = 106/āš, where N is the average number of fibres present in the cross section of the sliver. To derive this expression, the coefficient of variation (in %) of the fibre weight per unit length, accurate to two decimal places, is considered as
Find out about the wall construction of the cabins of large commercial airplanes (say the Boeing 777), the range of ambient conditions under which they operate, typical heat transfer coefficients on the inner and outer surfaces of the wall, and the heat generation rates inside. Determine the size of the heating and air-conditioning system that will be able to maintain the cabin at 20 °C at all times for an airplane capable of carrying 400 people.
1.How can i know the right frequency for operating any ferrite Core transformer that i have winded? 2. Enlighten me as to how to calculate for primary turns and voltage, and secondary turns and voltage.
Find if the given integer is prime number
(5) Threshold voltage of a short channel MOS transistor is smaller than the one of a
long channel MOS as ( ).
A. It occupies smaller area
B. The number of technological processes is small
C. Gate controls smaller number of charge
D. There are piled charges on the boundary of oxide-semiconductor junction
(6) The drain induced barrier lowering happens because of ( ).
A. High gate voltage in an NMOS device
B. High drain voltage that contributes in reducing the threshold voltage
C. The decrease in current in the channel due to high drain voltage
D. All of the above
(1) The minimum subthreshold swing of a MOSFET at T = 350 K is ( ).Ā
A. 30 mV/decade B. 60 mV/decade C. 70 mV/decade D. 90 mV/decadeĀ
(2) Which of the following causes the drain current to increase with VDS in theĀ
saturation region? ( ).Ā
A. channel length modulation B. inversion charge in the channelĀ
C. the body effect D. mobility degradationĀ
(3) A MOSFET is biased in the saturation region with a transconductance of gm = 10Ā
mS in the absence of channel length modulation effects. What would the gm be ifĀ
the CLM parameter was Ī» = 0.02 V-1 for ĪVDS = 3V? ( ).Ā
A. 9.94 mS B. 10 mS C. 10.6 mS D. 0.6 mSĀ
(4) At room temperature, a possible value for the mobility of electrons in the inversionĀ
layer of a silicon n-channel MOSFET is ( ).Ā
A. 450 cm2/Vźs B. 1350 cm2/Vźs C. 1800 cm2/Vźs D. 3600 cm2/VźsĀ
What is the MOSFET short-channel effect, what causes it, and why is itĀ
undesirable?