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Neil Mahajan from cambridge internaional foundation school, Jalandhar

Subject :IGK Class : Class 4

Which of the following is an artificial device used to regulate heartbeat?

AStethoscope
BElectrocardiograph
CPacemaker
DUltrasound machine

Ans 1:

JULFIKAR CHOWDHURY from Apeejay Nerul, mumbai

Class : Class 7

Admin from revisewise, Noida

Class : Class 1

The correct answer is C.

PRAANVI SINGH from DELHI PUBLIC SCHOOL , Singrauli

Class : Class 4

Answer C Because pacemaker is used to regulate the heartbeat. It is like a ring .