The diagram shows two metal plates P and Q between which there is a potential difference of 700 V. Plate Q is earthed. What is the magnitude and direction of the electric field at point R?
1 )
$1.4\times 10^2N C^{–1}$ from P towards Q2 )
$1.4 \times 10^{2}N C^{–1}$ from Q towards P3 )
$1.4 \times 10^5N C^{–1}$ from P towards Qتحلیل ویدئویی تست
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