SSC JE Electrical Engineering 23rd Jan 2018 Shift-1
For the following questions answer them individually
Which of the following is the CORRECT expression for the series resistance required to convert a galvanometer(having internal resistance ‘G’) into voltameter?
Determine the deflection factor (in V/m) of a CRO, whenthe deflection sensitivity of the CRO is 4 m/V.
Determine the value of current (in mA) for the full-scale deflection of a voltmeter, when the sensitivity of the voltmeter is 50 Ohms/Volt.
Determine the fastest rise time (in ms) of a sine wave that is reproduced by a CRO, when the bandwidth of the sine wave is 50 Hz.
Determine the value of shunt resistance (in Ohms) required to convert a galvanometerinto ammeterof reading up to 14 A, whentheinternal resistance of the galvanometeris 27 Ohmsandthe value of current for full scale deflection is 0.5 A.
Calculate the value of unknown capacitance $$C_{x}$$ in $$\mu F $$ F for the circuit given below, when no current flows through the detector (D).
Calculate the value of reactive power(in VAR) of a circuit having power factor of 0.8, when the apparent powerof the circuit is 200 VA.
