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In comparing the operation of the half-controlled 2-pulse circuit with that of the fully-controlled circuit, which of the following statements are evident? 1. Since half the thyristors are replaced by diodes, a half-controlled converter costs less than a fully-controlled converter. 2. Due to the freewheeling action with a half-controlled bridge-circuit power factor is improved in half-controlled converters. 3. The AC supply current is more distorted due to its zero periods with the half-controlled circuit, compared to a fully-controlled bridge circuit. Select the correct answer using the code given below :
Consider the following statements. 1. BJT is a current controlled device whereas IGBT is a voltage-controlled device. 2. BJT and IGBT have low input impedance whereas PMOSFET has higher input impedance. 3. IGBTs are available at higher voltage ratings than PMOSFETs because of increment in ON state voltage drop is less in IGBT. 4. IGBT and PMOSFETs have different substrate structures. The correct statements are
Consider the following statements (a) BJT is a current controlled device with high input impedance and high gain band width (b) FET is a voltage- controlled device with high input impedance and low gain bandwidth (c) UJT is a negative resistance device and can be used as an oscillator (d) FET and UJT can be used for amplification Which of the above statements are correct 
An Op-Amp can be connected to provide 1. Voltage controlled current source 2. Current controlled voltage source 3. Current controlled current source Which of the above statements are correct?
Assertion (A): DC servomotors are more commonly used in armature controlled mode than field controlled mode. Reason (R): Armature controlled Dc motors have higher starting torque than fiels controlled motors.
When device A has a cable that plugs into device B, and device B has a cable that plugs into device C and device C plugs into a port on the computer, this arrangement is called a _________
Consider the following statements regarding JFET: 1. The relationship between the drain current and gate-to-source voltage of a JFET is a nonlinear. 2. The minimum current for JFET occurs at pinch-off voltage defined by VGS = VP. 3. A current controlled device is one in which a current defines the operating conditions of the device. Which of the above statements are correct?
Consider the following statements: 1. The voltage developed across the OFF switches of the half-bridge converter is the maximum dc-link voltage. 2. In the full-bridge converter, the voltage across the primary of the transformer is the dc link voltage. 3. The voltage developed across the OFF switches of the full-bridge converter is half the maximum dc-link voltage. Which of the above statements are correct?
Which of the following are true? A. Desktop computer is a general-purpose computer made up of a separate monitor, keyboard, mouse and processor unit B. Laptop is where monitor, keyboard, pointing device, processor unit are combined in a single device C. Tablet is a device with a touch screen; which has a virtual keyboard which uses touch screen technology D. Smart Watch is a device that uses CRT technology so that the screen can bend around the wrist E. Mainframe computer runs small application where small data need to be processed Choose the correct answer from the options given below:
Prashant bought a device from an online store for Rs. 22000, but it was faulty so he returned it, the company accepts a return after deducting 10%. He saw the same device at a discounted price of Rs. 19000, he again ordered the same device, again it was found faulty, he makes a return, the company takes the return after deducting 12%. The amount of money he lost in this whole transaction is what percent of the cost of the device he bought initially?