What is the value of C.O.P. in the VCR with flash chamber? – McqOptions

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1.	What is the value of C.O.P. in the VCR with flash chamber?
A.	h1 – h2 / h1 – h4
B.	h1 – hf3 / h2 – h1
C.	h2 – h1 / h4 – h1
D.	h1 – hf4’ / h1 – h4
Answer» C. h2 – h1 / h4 – h1

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