CaC₂ is a chemical compound with chemical name Calcium Carbide. It is also called calcium acetylide or phenylglyceryl ether diacetate or glycerol phenyl ether diacetate. Calcium Carbide in its pure form appears as a colorless crystalline solid and is a rock-like structure at room temperature.

ओम का नियम

परिभाषा : नियत ताप पर ओम के नियम के अनुसार, एक चालक से गुजरने वाली धारा चालक पर विभवांतर के सीधे समानुपाती होती है। 
इस तरह से, यदि एक चालक से प्रवाहित धारा I है और V तार पर विभवांतर (या वोल्टता) है, तब ओम के नियम के अनुसार, 
I ∝ V (जब T नियत हो) 
या, I = V/R ...(i) 
जहाँ R एक नियतांक है, जिसे चालक का प्रतिरोध कहा जाता है। 
समीकरण (i) को लिखा जा सकता है - 
V = I x R ...(ii) 
प्रतिरोध की इकार्इ : 
प्रतिरोध (R) की SI इकार्इ ओम है। ओम को ग्रीक अक्षर ओमेगा (Ω) से प्रदर्शित किया जाता है। 
ओम के नियम से, R = V/I 
अब, यदि, V = 1 वोल्ट और I = 1 एम्पियर 
तब,  
इस प्रकार, 1 ओम चालक का वह प्रतिरोध है जो इसमें से 1 एम्पियर धारा को प्रवाहित होने देता है जब इसके सिरो पर 1 वोल्ट विभवान्तर लगाए रखा जाता है। 
ओम के नियम के परिणाम 
एक चालक से प्रवाहित धारा चालक के सिरों पर लगाए गये विभवान्तर के सीधे समानुपाती होती है। 
 
जब एक परिपथ में विभवान्तर नियत रखा जाता है, तो धारा चालक के प्रतिरोध के व्युत्क्रमानुपाती होती है। 
I ∝ 1/R 
विभवान्तर एवं धारा के मध्य अनुपात नियत रहता है। नियतांक का मान चालक (या प्रतिरोध) के प्रतिरोध पर निर्भर करता है। 
V/I = R

Meaning. Fiscal deficit is defined as excess of total expenditure over total receipts excluding borrowings during a fiscal year. In simple words, it is the amount of borrowing the government has to resort to meet its expenses. A large deficit means a large amount of borrowing. Fiscal deficit is a measure of how much the government needs to borrow from the market to meet its expenditure when its revenues are inadequate. In the form of an equation:
Fiscal Deficit = Total Expenditure - Total Receipts excluding Borrowings = Borrowing

Forfeiture of shares means cancellation of shares as such whatever amount has already been received on shares being forfeited is seized. The shareholder, who applies for the shares of the company makes an offer on the one hand, and on the other hand company by accepting or allotting shares accords acceptance. In this way, offer and acceptance with the lawful consideration makes a valid contract between the shareholder and the company. The contract makes it binding upon the shareholder to pay the installment of amount due on allotment and calls, whenever due.

Notice before Forfeiture:

If a member having been called upon to pay any call on his shares fails to pay the calls, the directors may either by adoption of Table A or by an express provision on the articles proceed to forfeit the shares held by such a defaulting member. Before the shares can be forfeited the company may serve a notice on the defaulting member requiring payment of the call.

The notice must give not less than fourteen days’ time from the date of service of notice for the payment of the amount due. The notice must also state that in the event the non-payment of the amount due within the period mentioned in the notice the shares in respect of which call was made will be liable to forfeiture.

Non-compliance of Notice:

If the shareholder fails to comply with the requirement of this notice, the directors may pass a resolution effecting the forfeiture of the shares.

Effect of Forfeiture:

When the shares have been forfeited, the defaulting shareholder ceases to be member of the company and he loses all rights or interests in his shares. But notwithstanding the forfeiture he remains liable to pay to the company all moneys which at the date of forfeiture were payable by him to the company in respect of the shares.