A cell of e.m.f. 1.5v is connected in series with a resistor of 3\(\Omega\). A high resistance voltmeter connected across the cell registers only 0.9v. Calculate the internal resistance of the cell

• A.5.0\(\Omega\)
• B.4.5\(\Omega\)
• C.2.4\(\Omega\)
• D.2.0\(\Omega\)
• E.1.8\(\Omega\)