4.2. A thermometer having a time constant of 1 min is initially at 50°C. It is immersed in a bath maintained at 100°C at t = 0. Determine the temperature reading at t=1.2 min.
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- 11:03 b C Pmark question If the forward voltage drop on a diode is 774 mV, what is the current passing through it? Assume I s =3,4x10-16 A. If the forward voltage drop across a diode is 774 mV, what is the current flowing through it? Is =3.4x10 Get an A. -16 ( a. 2,885 mA b. 4,327 mA c. 3,606 mA D. 2,163 mA O to. 5,048 mA { * . . 51% - Previous page ||| Next page ← Announcements - Teams code: fmf9zv7 <2.3 A thermocouple element when taken from a liquid at 50°C and plunged into a liquid at 100°C at time t-0 gave the following e.m.f. values. Determine the 95% response time. Time (s) e.m.f. (mV) 2.5 20 40 60 80 100 120 3.8 4.5 4.8 4.9 5.0 5.0The waveform displayed on an oscilloscope is as shown in Figure The 'time/cm' switch is set to 2 ms/cm, and the 'volts/cm' switch is set to 1 V/cm. Determine the (i) amplitude of waveform Q (i) peak to peak value of waveform P. (ii)i frquency of waveform P and (iv) phase angle difference between P and Q in Degrees. Upload your Answers steps in the "Final Answer Submission" Link provided in the Moodle. () Amplitude of waveform Q = (ii) Peak to peak value of waveform P = (ii) Frequency of waveform P = (iv) Phase angle difference between P and Q in Degrees =
- 8. Liquids with solid impurities a) Have higher dielectrie strength b) Of large size have higher dielectric strength c) Have lower dielectric strength as compared to pure liquids d) None of the above 9. Peak to peak ripple is defined as a) the difference between average de voltage and peak value b) the difference between maximum and minimum de voltage c) the difference between maximum ac and average dc voltages d) the difference between ac (rms) and average de voltages 10. In a Cockroft-Walton circuit, input voltage 100 kV load current 25 mA, supply frequency 100 Hz, each capacitor 10 nF. The optimum no. of stages for maximum output voltage is a) 1 b) 2 c) 10 d) 35An iron ring elecromagnet has a relative permeability of 1250 when it is excited by a coil having 500 turns at 0.8 A. the mean length of iron parts is 48 cm, the cross-section of the core is 10 square cm and the air gap is 0.5 cm. What is its total reluctance?Why is it desirable to wait 1 s after a potential pulse before recording the current in voltammetry?
- The waveform displayed on an oscilloscope is as shown in Figure The 'time/cm' switch is set to 0.2 ms/cm, and the 'volts/cm' switch is set to 30 V/cm. Determine the (1) amplitude of waveform Q, (i) peak to peak value of waveform P, (ii) frequency of waveform P and (iv) phase angle difference between P and Q in Degrees. Upload your Answers steps in the "Final Answer Submission" Link provided in the Moodle. (i) Amplitude of waveform Q = (ii) Peak to peak value of waveform P = (iii) Frequency of waveform P = (iv) Phase angle difference between P and Q in Degrees =The waveform displayed on an oscilloscope is as shown in Figure The 'time/cm' switch is set to 0.2 ms/cm, and the 'volts/cm' switch is set to 40 V/cm. Determine the (i) amplitude of waveform Q, (ii) peak to peak value of waveform P, (ii) frequency of waveform P and (iv) phase angle difference between P and Q in Degrees. Upload your Answers steps in the "Final Answer Submission" Link provided in the Moodle. (i) Amplitude of waveform Q = (ii) Peak to peak value of waveform P = (iii) Frequency of waveform P = (iv) Phase angle difference between P and Q in Degrees =Briefly in your own understanding explain attenuation in electrical engineering.
- The wavelorm displayed on an oscilloscope is as shown in Figure The 'time/cm' switch is set to 50 ms/cm, and the 'volts/cm' switch is set to 40 V/cm. Determine the (1) amplitude of waveform Q, (ii) peak to peak value of waveform P, (111) frequency of waveform P and (iv) phase angle difference between P and Q in Degrees. 主 Upload your Answers steps in the "Final Answer Submission" Link provided in the Moodle (i) Amplitude of waveform Q = (ii) Peak to peak value of waveform P (iii) Frequency of waveform P =V₁ 12 In the figure shown, what is the peak to peak voltage of V1 if the vertical sensitivity of the oscilloscope is 0.25 V/Div* HIPNHHHH ALLHow does the internal resistance of the multimeter (in voltage setting) affect the charging/discharging rate of the capacitor. Explain.