how can we define the direction of current with needle movement of an ammeter?

2 Answers  

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i want to know basic electronics and commmunication question

2 Answers  

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what is differences between 3 way manifold transmitter and 5 way manifold transmitter?

1 Answers   Kentech,

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I am appearing for SAIL MT TECH ELECTRONICS NEED SAMPLE QP

5 Answers   Sail, Siemens,

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What is D-FF? What is the basic difference between Latches and Flip flops? What is a multiplexer? How can you convert an SR Flip-flop to a JK Flip-flop? How can you convert an JK Flip-flop to a D Flip-flop? What is Race-around problem? How can you rectify it? Which semiconductor device is used as a voltage regulator and why? Explain an ideal voltage source? Explain zener breakdown and avalanche breakdown? What are the different types of filters? What is the need of filtering ideal response of filters and actual response of filters? What is sampling theorem? What is impulse response? Explain the advantages and disadvantages of FIR filters compared to IIR counterparts. What is CMRR? Explain half-duplex and full-duplex communication? Which range of signals is used for terrestrial transmission? Why is there need for modulation? Which type of modulation is used in TV transmission? Why we use vestigial side band (VSB-C3F) transmission for picture? When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency? For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit? BPFSK is more efficient than BFSK in presence of noise. Why? What is meant by pre-emphasis and de-emphasis? Explain 3 dB cutoff frequency? Why is it 3 dB, not 1 dB? Explain ASCII, EBCDIC?

3 Answers   DRDO, Electronics,

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what are the plc application in engineering.??

0 Answers  

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please tell me which book better in hindi medum student.for rrb tech.examination(like section engg.& junior engg?

2 Answers   Galaxy Bank of Hr, HCL,

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What are the advantages of current commutated chopper?

0 Answers  

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What is the ruturn loss?

4 Answers   Ericsson,

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what current is transistor biased?

0 Answers  

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what is ccd

2 Answers  

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is there any method to interact with LnT ER300P trivector meters and fetch data from that online from remote? the distance between the meter and the pc will be about 4 km.plz reply.thanks

0 Answers   Mitsubishi,

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