Related Questions

For high efficiency of transfer of power, internal resistance of the source should be
A Equal to the load resistance
B Less than the load resistance
C More than the load resistance
D None of the above
In order to get maximum power transfer from a capacitive source, the load must have an impedance that is the complex conjugate of the source impedance.
A True
B False
Efficiency of power transfer when maximum transfer of power c xerosis
A 100%
B 80%
C 75%
D 50%
The scales form in heat exchanges after a period of operation and provide additional resistance to heat transfer with some heat transfer coefficient . The reciprocal of this scale heat transfer coefficient is called .
A scaling factor
B forming factor
C resisting factor
D fouling factor
According to maximum power transfer theorem, the maximum power is absorbed by one network from another network when
A The impedance of one of the networks is half that of the other
B The impedance of one is the complex conjugate of the other
C The impedance of one is equal to that of the other
D None of the above
The bending moment at a section tends to bend or deflect the beam and the internal stresses resist its bending. The resistance offered by the internal stresses, to the bending, is called
A Compressive stress
B Shear stress
C Bending stress
D Elastic modulus
“Maximum power output is obtained from a network when the load resistance is equal to the output resistance of the network as seen terminals of the load”. The above statement is associated with
A Millman’s theorem
B Thevenin’s theorem
C Superposition theorem
D Maximum power transfer theorem
The ratio of surface convection resistance to the internal conduction resistance is known as
A Grashoff number
B Biot number
C Stanton number
D Prandtl number
সিরিজে সংযুক্ত একটি এ্যামিটার এবং একটি অজানা রোধ দুটি একই রকম 1.5 V ব্যাটারীর দুই প্রান্তে সংযুক্ত আছে। যখন ব্যাটারী দুটি সিরিজে সংযুক্ত থাকে তখন এ্যামিটার। amp রিডিং প্রদর্শন করে। আবার ব্যাটারী দুটি সমান্তরালে সংযুক্ত করলে 0.6 amp রিডিং প্রদর্শন করে। ব্যাটারীর আভ্যন্তরিন রোধ কত ? (An ammeter and an unknown resistance are connected in series across two identical batteries of each 1.5 V. The ammeter shows current I amp and 0.6 amp when the batteries are connected in series and parallel, respectively. What is the internal resistance of the battery?)
A 13Ω
B 12Ω
C 1Ω
D 0.1Ω
E 23Ω
Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current?
A P = IE
B P = E2/R
C P = I2R
D I = P/E
E None of the above

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