When θ is 90 degree, alternating EMF will be

<tr> <td class=""> <p>Em</p> </td> </tr>

{"type":"math","methodBadge":"Direct Formula","given":"θ = 90^\u0000","formulaUsed":"$$E_{m} = E_{0} \\sin(\\theta)$$","steps":[{"title":"Identify the value of θ","explanation":"Given that θ is 90 degrees, we know that \\sin(90^\u0000) = 1.","highlight":"$$\\sin(\\theta) = \\sin(90^\u0000) = 1$$"},{"title":"Apply the formula for EMF","explanation":"Substituting the value of θ into the formula: $$E_{m} = E_{0} \\sin(\\theta)$$ gives us $$E_{m} = E_{0} \\cdot 1$$.","highlight":"$$E_{m} = E_{0}$$"},{"title":"Interpret the result","explanation":"This means that when θ is 90 degrees, the alternating EMF reaches its maximum value, which is Em.","highlight":"$$E_{m} = E_{0}$$"}],"answer":"C is correct because at θ = 90 degrees, the alternating EMF is equal to Em, the maximum value.","coreConcepts":["Alternating Current","EMF","Trigonometric Functions"],"crossTopicTip":"Understanding angles in trigonometric functions is crucial for AC circuit analysis and optimization."}