UNIT-1 viva
<> it is a rectangular plastic board which have 2 parts upper part which is connected vertically and lower part which is connected horizontally. it is used to make temporary circuits. <>Breadboard circuit board
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EXP-1
>> Resistance is bidirectional. >>Agr Hume 220 measure krna hai jasise to hm 200 waale nhi uske next p knobe ko set krnge. >> left down circle is resistance measurement >> measuring ac voltage. in this polarity don't matter >> measuring dc voltage. in this polarity matters. >> measuring resistance >>right up is AC voltage and below it is DC current. >> com m hmesha black wire lgegi .aur hme jab voltage nikalni hogi to red waali ko left p lgaenge and jb current nikalna hoga to right waali p .and transistor hmesha NPN and PNP k phle 3 blocks m lgega. >> measuring resistance, current and voltage >> we can't connect the LED directly to the battery or it will blast so we add resistance to it. >> cathode(short terminal) of led is connected to black or -ve terminal of the battery.