Why did Tesla appear on the coins of Yugoslavia and Serbia?

This is Serbian paper money with a face value of 20 dinars. On the front of the bill is the poet Peter petrovich En Jie Goss, and on the back is a sitting statue of En Jie Goss. Serbian currency is not freely convertible in China, so Serbian paper money cannot be exchanged in domestic banks. There is no exchange rate between Serbian dinars and RMB, so it should be converted by the exchange rate between dinars and US dollars, and 20 dinars should be converted into 1.56 RMB.

This is a 100 dinar note from Serbia. On the front of the bill is Tesla, a Serbian-American scientist, electrical engineer and inventor, and on the back is Tesla and the electromagnetic induction machine he invented. At present, there is no direct exchange rate between Serbian dinar and RMB, so it is impossible to exchange money. However, it is collectible, and the brand-new one is worth about RMB in 35 yuan in the postal currency trading market.

This is a 500 dinar bill from Serbia. On the front of the banknote is the head of Serbian geographer Jovan Svihoun. "Nadella? Banka? SRBIJE means "National Bank of Serbia" in Serbian. Serbian currency cannot be freely exchanged, nor can it be exchanged in domestic banks. There is no exchange rate between Serbian dinar and RMB, so it must be converted with the exchange rate of US dollars and Serbian dinar, and 500 Serbian dinars is equivalent to RMB in 33 yuan. However, it is collectible, and the brand-new one is worth about RMB in 75 yuan in the postal currency trading market.