[" 18.Mark out the correct options "],[" (i) An ammeter should have small resistance "],[" (ii) An ammeter should have large resistance "],[" (iii) A voltmeter should have small resistance "],[" (iv) A voltmeter should have large resistance "],[" (1) (i),(ii) "],[" (2) (ii),(iii) "],[" (3) (iii) (iv) "],[" (4) (i),(iv) "]